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論文リスト: Publications
2024 "Broken Screw Rotational Symmetry in the Near-Surface Electronic Structure of AB-Stacked Crystals" H. Tanaka, S. Okazaki, M. Kobayashi, Y. Fukushima, Y. Arai, T. Iimori, M. Lippmaa, K. Yamagami, Y. Kotani, F. Komori, K. Kuroda, T. Sasagawa, and T. Kondo, Phys. Rev. Lett. (2024), in press.

"Gate-tunable Giant Superconducting Nonreciprocal Transport in Few-layer Td-MoTe2" T. Wakamura, M. Hashisaka, S. Hoshino, M. Bard, S. Okazaki, T. Sasagawa, T. Taniguchi, K. Watanabe, K. Muraki, and N. Kumada, Phys. Rev. Research 6, 013132 (2024).

2023 "Polarity-dependent Twist-controlled Resonant Tunneling Device based on Few-layer WSe2" K. Kinoshita, R. Moriya, S. Okazaki, Y. Zhang, S. Masubuchi, K. Watanabe, T. Taniguchi, T. Sasagawa, and T. Machida, Phys. Rev. Research 5, 043292 (2023).

"複数層の遷移金属ダイカルコゲナイドで発現するサブバンド量子物性" 守谷頼、木下圭、町田友樹、笹川崇男、 固体物理 第58巻 第11号, 699 (2023).

"Symmetry Engineering in Twisted Bilayer WTe2" Y. Zhang, K. Kamiya, T. Yamamoto, M. Sakano, X. Yang, S. Masubuchi, S. Okazaki, K. Shinokita, T. Chen, K. Aso, Y. Yamada-Takamura, Y. Oshima, K. Watanabe, T. Taniguchi, K. Matsuda, T. Sasagawa, K. Ishizaka, and T. Machida, Nano Lett. 23, 9280 (2023).

"Gate-Defined Josephson Weak-Links in Monolayer WTe2" M.D. Randle, M. Hosoda, R.S. Deacon, M. Ohtomo, P. Zellekens, K. Watanabe, T. Taniguchi, S. Okazaki, T. Sasagawa, K. Kawaguchi, S. Sato, and K. Ishibashi, Adv. Mater. 2301683 (2023).

"Transport Properties of Magnetically doped Topological Insulator Fe-BiSbTe2Se" T. Tanda, R. Yano, H.T. Hirose, T. Sasagawa, and S. Kashiwaya, PS Conf. Proc. 38, 011180 (2023).

"Andreev Bound States and Doppler Shift in La1.85Sr0.15CuO4/Au Junctions" H. Teshima, K. Donguhn, T. Sakamori, R. Yano, Y. Hiramatsu, S. Tamura, K. Yada, Y. Tanaka, T. Sasagawa, and S. Kashiwaya, PS Conf. Proc. 38, 011041 (2023).

"Piezoelectric Effect in 2H and 3R phases of α-In2Se3" K. Ueda, R. Murata, T. Sasagawa, and Y. Shiomi, Jpn. J. Appl. Phys. 62, 061006 (2023).

2022 "Unconventional Short-range Structural Fluctuations in Cuprate Superconductors" D. Pelc, R.J. Spieker, Z.W. Anderson, M.J. Krogstad, N. Biniskos, N.G. Bielinski, B. Yu, T. Sasagawa, L. Chauviere, P. Dosanjh, R. Liang, D.A. Bonn, A. Damascelli, S. Chi, Y. Liu, R. Osborn, M. Greven, Scientific Reports 12, 20483 (2022).

"二次元物質と三次元物質の間にある物性" 守谷頼、竹山慶、笹川崇男、町田友樹、 日本物理学会誌 第77巻 第9号, 627 (2022).

"Odd-even Layer-number Effect of Valence-band Spin Splitting in WTe2" M. Sakano, Y. Tanaka, S. Masubuchi, S. Okazaki, T. Nomoto, A. Oshima, K. Watanabe, T. Taniguchi, R. Arita, T. Sasagawa, T. Machida, and K. Ishizaka, Phys. Rev. Research 4, 023247 (2022).

"Dry Pick-and-flip Assembly of van der Waals Heterostructures for Microfocus Angle-resolved Photoemission Spectroscopy" S. Masubuchi, M. Sakano, Y. Tanaka, Y. Wakafuji, T. Yamamoto, S. Okazaki, K. Watanabe, T. Taniguchi, J. Li, H. Ejima, T. Sasagawa, K. Ishizaka, and T. Machida, Scientific Reports 12, 10936 (2022).

"Giant Second Harmonic Transport under Time-reversal Symmetry in a Trigonal Superconductor" Y.M. Itahashi, T. Ideue, S. Hoshino, C. Goto, H. Namiki, T. Sasagawa, and Y. Iwasa, Nature Commun. 13, 1659 (2022).

"Large Anomalous Hall Effect Induced by Weak Ferromagnetism in the Noncentrosymmetric Antiferromagnet CoNb3S6" H. Tanaka, S. Okazaki, K. Kuroda, R. Noguchi, Y. Arai, S. Minami, S. Ideta, K. Tanaka, D. Lu, M. Hashimoto, V. Kandyba, M. Cattelan, A. Barinov, T. Muro, T. Sasagawa, and T. Kondo, Phys. Rev. B 105, L121102 (2022).

"Switchable Out-of-plane Shift Current in Ferroelectric Two-dimensional Material CuInP2S6" Y. Zhang, R. Taniguchi, S. Masubuchi, R. Moriya, K. Watanabe, T. Taniguchi, T. Sasagawa, and T. Machida, Appl. Phys. Lett. 120, 013103 (2022).

2021 "Visualizing Superconductivity in an Inversion-symmetry-broken Doped Weyl Semimetal" Z. Wang, J. Olivares, H. Namiki, V. Pareek,K. Dani, T. Sasagawa, V. Madhavan, and Y. Okada, Phys. Rev. B 104, 115102 (2021).

"Evolution of Valence- and Spin-specific Local Sistortions in La2-xSrxCoO4" J. Okamoto, A. Chainani, Z.Y. Chen, H.Y. Huang, A. Singh, T. Sasagawa, D.I. Khomskii, A. Fujimori, C.T. Chen,and D.J. Huang, Phys. Rev. B 104, 054417 (2021).

"Magnetic Field Reveals Vanishing Hall Response in the Normal State of Stripe-ordered Cuprates" Z. Shi, P.G. Baity, J. Terzic, B.K. Pokharel, T. Sasagawa, and D. Popovic, Nature Commun. 12, 3724 (2021).

"Charge Order Dynamics in Underdoped La1.6-xNd0.4SrxCuO4 Revealed by Electric Pulses" B.K. Pokharel, Y. Wang, J. Jaroszynski, T. Sasagawa, and D. Popovic, Appl. Phys. Lett. 118, 244104 (2021).

"Resonant Tunneling Due to van der Waals Quantum-Well States of Few-Layer WSe2 in WSe2/h-BN/p+-MoS2 Junction" K. Takeyama, R. Moriya, S. Okazaki, Y. Zhang, S. Masubuchi, K. Watanabe, T. Taniguchi, T. Sasagawa, and T. Machida, Nano Lett. 21, 3929 (2021).

"Magnetic Gap of Fe-Doped BiSbTe2Se Bulk Single Crystals Detected by Tunneling Spectroscopy and Gate-Controlled Transports" R. Yano, A. Kudriashov, H.T. Hirose, T. Tsuda, H. Kashiwaya, T. Sasagawa, A.A. Golubov, V.S. Stolyarov, and S. Kashiwaya, J. Phys. Chem. Lett. 12, 4180 (2021).

"Low-cost Computing of the Thermophysical Properties of Organic-inorganic Halide Perovskites by Density Functional Theory Combined with the Three-dimensional Reference Interaction Site Method" T. Yokoyama, S. Ohuchi, T. Matsui, Y. Kaneko, T. Sasagawa, J. Phys. Chem. C 125, 6601 (2021).

"Local Observations of Orbital Diamagnetism and Excitation in Three-Dimensional Dirac Fermion Systems Bi1-xSbx" Y. Watanabe, M. Kumazaki, H. Ezure, T. Sasagawa, R.J. Cava, M. Itoh, and Y. Shimizu, J. Phys. Soc. Jpn 90, 053701 (2021).

"Chirality-dependent Circular Photogalvanic Effect in Enantiomorphic Two-dimensional Organic-inorganic Hybrid Perovskites" P.-J. Huang, K. Taniguchi, M. Shigefuji, T. Kobayashi, M. Matsubara, T. Sasagawa, H. Sato, and H. Miyasaka, Adv. Mater. 2008611 (2021).

"An Efficient ab-initio Scheme for Discovering Organic-inorganic Hybrid Materials by using Genetic Algorithms" T. Yokoyama, S. Ohuchi, E. Igaki, T. Matsui, Y. Kaneko, T. Sasagawa, J. Phys. Chem. Lett. 12, 2023 (2021).

"Picosecond Dynamics in Layered Cobalt Perovskites Studied by Time-resolved Raman Spectroscopy" R. Fukaya, N. Yamaya, T. Ishikawa, S. Koshihara, Y. Okimoto, K. Onda, A. Isayama, T. Sasagawa, and K. Horigane, C. R. Phys. 22, 1 (2021).

"Single-surface Conduction in a Highly Bulk-resistive Topological Insulator Sn0.02Bi1.08Sb0.9Te2S using the Corbino Geometry" T. Misawa, S. Nakamura, Y. Okazaki, Y. Fukuyama, N. Nasaka, H. Ezure, C. Urano, N.-H. Kaneko, and T. Sasagawa, Appl. Phys. Lett. 118, 033102 (2021).

"Evidence for a Higher-order Topological Insulator in a Three-dimensional Material Built from van der Waals Stacking of Bismuth-halide Chains" R. Noguchi, M. Kobayashi, Z. Jiang, K. Kuroda, T. Takahashi, Z. Xu, D. Lee, M. Hirayama, M. Ochi, T. Shirasawa, P. Zhang, C. Lin, C. Bareille, S. Sakuragi, H. Tanaka, S. Kunisada, K. Kurokawa, K. Yaji, A. Harasawa, V. Kandyba, A. Giampietri, A. Barinov, T.K. Kim, C. Cacho, M. Hashimoto, D. Lu, S. Shin, R. Arita, K. Lai, T. Sasagawa, T. Kondo, Nature Materials 20, 473 (2021).

2020 "Giant Nonreciprocal Magnetotransport in Bulk Trigonal Superconductor PbTaSe2" T. Ideue, S. Koshikawa, H. Namiki, T. Sasagawa, and Y. Iwasa, Phys. Rev. Research 2, 042046 (2020).

"High-mobility Carriers Induced by Chemical Doping in the Candidate Nodal-line Semimetal CaAgP" Y. Okamoto, K. Saigusa, T. Wada, Y. Yamakawa, A. Yamakage, T. Sasagawa, N. Katayama, H. Takatsu, H. Kageyama, and K. Takenaka, Phys. Rev. B 102, 115101 (2020).

"Topological Lifshitz Transition of the Intersurface Fermi-arc Loop in NbIrTe4" S.A. Ekahana, Y.W. Li, Y. Sun, H. Namiki, H.F. Yang, J. Jiang, L.X. Yang, W.J. Shi, C.F. Zhang, D. Pei, C. Chen, T. Sasagawa, C. Felser, B.H. Yan, Z.K. Liu, and Y.L. Chen, Phys. Rev. B 102, 085126 (2020).

"Dual-gate Control of the Surface Carriers of the Highly-bulk-resistive Topological Insulator Sn0.02Bi1.08Sb0.9Te2S" T. Misawa, S. Nakamura, Y. Okazaki, Y. Fukuyama, N. Nasaka, H. Ezure, C. Urano, N.-H. Kaneko, and T. Sasagawa, J. Phys.: Condens. Matter 32, 405704 (2020).

"Pair Density Wave at High Magnetic Fields in Cuprates with Charge and Spin Orders" Z. Shi, P.G. Baity, J. Terzic, T. Sasagawa, and D. Popovic, Nature Commun. 11, 3323 (2020).

"Large Magnetoresistance and Dirac Line Node in LaAgBi2" M. Murase and T. Sasagawa, J. Phys. Soc. Jpn 89, 055003 (2020).

"Radial Spin Texture in Elemental Tellurium with Chiral Crystal Structure" M. Sakano, M. Hirayama, T. Takahashi, S. Akebi, M. Nakayama, K. Kuroda, K. Taguchi, T. Yoshikawa, K. Miyamoto, T. Okuda, K. Ono, H. Kumigashira, T. Ideue, Y. Iwasa, N. Mitsuishi, K. Ishizaka, S. Shin, T. Miyake, S. Murakami, T. Sasagawa, and T. Kondo, Phys. Rev. Lett. 124, 136404 (2020).

"Deep-Learning-Based Image Segmentation Integrated with Optical Microscopy for Automatically Searching for Two-Dimensional Materials" S. Masubuchi, E. Watanabe, Y. Seo, S. Okazaki, T. Sasagawa, K. Watanabe, T. Taniguchi, and T. Machida, NPJ 2D Mater. Appl. 4, 3 (2020).

"Unusual Superconducting Proximity Effect in Magnetically Doped Topological Josephson Junctions" R. Yano, M. Koyanagi, H. Kashiwaya, K. Tsumura, H. T Hirose, Y. Asano, T. Sasagawa, and S. Kashiwaya, J. Phys. Soc. Jpn 89, 034702 (2020).

"Vortex Phase Diagram and the Normal State of Cuprates with Charge and Spin Orders" Z. Shi, P.G. Baity, T. Sasagawa, and D. Popovic, Science Advances 6, eaay8946 (2020).

2019 "Pressure-induced Topological Phase Transition in Noncentrosymmetric Elemental Tellurium" T. Ideue, M. Hirayama, H. Taiko, T. Takahashi, M. Murase, T. Miyake, S. Murakami, T. Sasagawa, and Y. Iwasa, Proc. Natl. Acad. Sci. 116, 25530 (2019).

"Zero-energy Vortex Bound State in the Superconducting Topological Surface State of Fe(Se,Te)" T. Machida, Y. Sun, S. Pyon, S. Takeda, Y. Kohsaka, T. Hanaguri, T. Sasagawa, and T. Tamegai, Nature Materials 18, 811 (2019).

"Doublon-holon Pairing Mechanism via Exchange Interaction in Two-dimensional Cuprate Mott Insulators" T. Terashige, T. Ono, T. Miyamoto, T. Morimoto, H. Yamakawa, N. Kida, T. Ito, T. Sasagawa, T. Tohyama, and H. Okamoto, Science Advances 5, eaav2187 (2019).

"Universal Precursor of Superconductivity in the Cuprates" G. Yu, D.-D. Xia, D. Pelc, R.-H. He, N.-H. Kaneko, T. Sasagawa, Y. Li, X. Zhao, N. Barisic, A. Shekhter, and M. Greven, Phys. Rev. B 99, 214502 (2019).

"A General Route to Form Topologically-protected Surface and Bulk Dirac Fermions along High-Symmetry Lines" O.J. Clark, F. Mazzola, I. Markovic, J. M. Riley, J. Feng, B.-J. Yang, T. Okuda, J. Fujii, I. Vobornik, T.K. Kim, K. Okawa, T. Sasagawa, M.S. Bahramy, and P.D.C. King, Electron. Struct. 1, 014002 (2019).

"Quantitative Comparison between Electronic Raman Scattering and Angle-Resolved Photoemission Spectra in Bi2Sr2CaCu2O8+δ Superconductors: Doping Dependence of Nodal and Antinodal Superconducting Gaps", K. Tanaka, N.T. Hieu, G. Vincini, T. Masui, S. Miyasaka, S. Tajima, and T. Sasagawa, J. Phys. Soc. Jpn 88, 044710 (2019).

"A Weak Topological Insulator State in Quasi-one-dimensional Bismuth Iodide", R. Noguchi, T. Takahashi, K. Kuroda, M. Ochi, T. Shirasawa, M. Sakano, C. Bareille, M. Nakayama, M.D. Watson, K. Yaji, A. Harasawa, H. Iwasawa, P. Dudin, T.K. Kim, M. Hoesch, V. Kandyba, A. Giampietri, A. Barinov, S. Shin, R. Arita, T. Sasagawa, and T. Kondo, Nature 566, 518 (2019).

"Proximity-Induced Superconducting States of Magnetically Doped 3D Topological Insulators with High Bulk Insulation", R. Yano, H.T. Hirose, K. Tsumura, S. Yamamoto, M. Koyanagi, M. Kanou, H. Kashiwaya, T. Sasagawa, and S. Kashiwaya, Condens. Matter 4, 9 (2019).

2018 "Extremely Large Magnetoresistance induced by Hidden Three-dimensional Dirac Bands in Nonmagnetic Semimetal InBi", K. Okawa, M. Kanou, H. Namiki, and T. Sasagawa, Phys. Rev. Mater. 2, 124201 (2018).

"Emergence of Superconductivity in the Cuprates via a Universal Percolation Process" D. Pelc, M. Vuckovic, M.S. Grbic, M. Pozek, G. Yu, T. Sasagawa, M. Greven, and N. Barisic, Nature Commun. 9, 4327 (2018).

"Ultrafast Multi-terahertz Probes of Symmetry Breaking in a Stripe-phase Correlated Oxide" G. Coslovich, B. Huber, S. Behl, A.F. Kemper, T. Sasagawa, H. A. Bechtel, M.C. Martin, and R.A. Kaindl, Proc. SPIE 10756, 107560K (2018).

"Magnetic States of the Weakly Ferromagnetic Iron-Based Superconductor Sr2VFeAsO3+δ Studied by X-ray Magnetic Circular Dichroism" M. Horio, Y. Takeda, H. Namiki, T. Katagiri, Y.K. Wakabayashi, S. Sakamoto, Y. Nonaka, G. Shibata, K. Ikeda, Y. Saitoh, H. Yamagami, T. Sasagawa, and A, Fujimori, J. Phys. Soc. Jpn 87, 105001 (2018).

"Decomposition of La2-xSrxCuO4 into Several La2O3 Phases at Elevated Temperatures in Ultrahigh Vacuum inside a Transmission Electron Microscope", J. S. Jeong, W. Wu, M. Topsakal, G. Yu, T. Sasagawa, M. Greven, and K. A, Mkhoyan, Phys. Rev. Mater. 2, 054801 (2018).

"Extremely Large Magnetoresistance in a High-quality WTe2 Grown by Flux Method" K. Tsumura, R. Yano, H. Kashiwaya, M. Koyanagi, S. Masubuchi, T. Machida, H. Namiki, T. Sasagawa, and S. Kashiwaya, J. Phys. Conf. Series 969, 012134 (2018).

"Collective Dynamics and Strong Pinning in the Charge-Density-Wave-Ordered Phasein La1.48Nd0.4Sr0.12CuO4", P. G. Baity, T. Sasagawa, and D. Popovic, Phys. Rev. Lett. 120, 156602 (2018).

"Progress Report on NMIJ Acoustic Gas Thermometry at the Triple Point of Water" T. Misawa, J. Widiatmo, Y. Kano, T. Sasagawa, and K. Yamazawa, Int. J. Thermophys. 39, 4 (2018).

"Fermiology and Superconductivity of Topological Surface States in PdTe2" O.J. Clark, M.J. Neat, K. Okawa, L. Bawden, I. Markovic, F. Mazzola, J. Feng, V. Sunko, J.M. Riley, W. Meevasana, J. Fujii, I. Vobornik, T.K. Kim, M. Hoesch, T. Sasagawa, P. Wahl, M.S. Bahramy, and P.D.C. King, Phys. Rev. Lett. 120, 156401 (2018).

"Terahertz Radiation by Subpicosecond Spin-polarized Photocurrent Originating from Dirac Electrons in a Rashba-type Polar Semiconductor" Y. Kinoshita, N. Kida, T. Miyamoto, M. Kanou, T. Sasagawa, and H. Okamoto, Phys. Rev. B 97, 161104(R) (2018).

"Femtosecond Study of A1g Phonons in the Strong 3D Topological Insulators: From Pump-probe to Coherent Control" J. Hu, K. Igarashi, T. Sasagawa, K.G. Nakamura, and O.V. Misochko, Appl. Phys. Lett. 112, 031901 (2018).

"Ubiquitous Formation of Bulk Dirac Cones and Topological Surface States from a Single Orbital Manifold in Transition-metal Dichalcogenides" M.S. Bahramy, O.J. Clark, B.-J. Yang, J. Feng, L. Bawden, J. M. Riley, I. Markovic, F. Mazzola, V. Sunko, D. Biswas, S. P. Cooil, M. Jorge, J.W.Wells, M. Leandersson, T. Balasubramanian, J. Fujii, I. Vobornik, J. Rault, T. K. Kim, M. Hoesch, K. Okawa, M. Asakawa, T. Sasagawa, T. Eknapakul, W. Meevasana, and P.D.C. King, Nature Materials 17, 21 (2018).

2017 "Absorption of Diffusive Spin Current in Surface and Bulk States of a Topological Insulator" A. Nomura, N. Nasaka, T. Tashiro, T. Sasagawa, and K. Ando, Phys. Rev. B 96, 214440 (2017).

"Ultrafast Dynamics of Vibrational Symmetry Breaking in a Charge-ordered Nickelate" G. Coslovich, A.F. Kemper, S. Behl, B. Huber, H. A. Bechtel, T. Sasagawa, M.C. Martin, A. Lanzara, and R.A. Kaindl, Science Advances 3, e1600735 (2017).

"Observation of Bogoliubov Band Hybridization in the Optimally Doped Trilayer Bi2Sr2Ca2Cu3O10+δ" S. Kunisada, S. Adachi, S. Sakai, N. Sasaki, M. Nakayama, S. Akebi, K. Kuroda, T. Sasagawa, T. Watanabe, S. Shin, and T. Kondo, Phys. Rev. Lett. 119, 217001 (2017).

"Observation of Nodal Line in Non-symmorphic Topological Semimetal InBi" S.A. Ekahana, S.-C. Wu, J. Jiang, K. Okawa, D. Prabhakaran, C.-C. Hwang, S.-K. Mo, T. Sasagawa, C. Felser, B. Yan, Z. Liu, and Y. Chen, New J. Phys. 19, 065007 (2017).

"Investigation of Topological Phase Transition in BiTeBr under High Pressure" A. Ohmura, Y. Higuchi, T. Ochiai, M. Kanou, S. Nakano, F. Ishikawa, A. Nakayama, Y. Yamada, T. Sasagawa, J. Phys. Conf. Series 950, 042036 (2017).

"Full-gap Superconductivity in Spin-polarised Surface States of Topological Semimetal β-PdBi2" K. Iwaya, Y. Kohsaka, K. Okawa, T. Machida, M.S. Bahramy, T. Hanaguri, and T. Sasagawa, Nature Commun. 8, 976 (2017).

"Low-energy Surface States in the Normal State of α-PdBi2 Superconductor" H. Choi, M. Neupane, T. Sasagawa, E. E. M. Chia, and J.-X. Zhu, Phys. Rev. Mater. 1, 034201 (2017).

"Narrow-band Anisotropic Electronic Structure of ReS2" D. Biswas, A. M. Ganose, R. Yano, J. M. Riley, L. Bawden, O. J. Clark, J. Feng, L. Collins-Mcintyre, W. Meevasana, T. K. Kim, M. Hoesch, J. E. Rault, T. Sasagawa, D. O. Scanlon, and P. D. C. King, Phys. Rev. B 96, 085205 (2017).

"Probing the Superconducting Gap Symmetry of α-PdBi2: A Penetration Depth Study" S. Mitra, K. Okawa, S. K. Sudheesh, T. Sasagawa, J.-X. Zhu, and E. E. M. Chia, Phys. Rev. B 95, 134519 (2017).

"Preparation and Characterization of Sn-BSTS Topological Insulator for Universality Test of the Quantum Hall Effect" T. Misawa, Y. Fukuyama, Y. Okazaki, S. Nakamura, N. Nasaka, T. Sasagawa, and N. Kaneko, IEEE Trans. Instrum. Meas. 66, 1489 (2017).

"トポロジカル電子物質の開拓" 笹川崇男, 応用物理 第86巻 第5号, 381 (2017).

"Pressure-induced Topological Phase Transition in Polar-semiconductor BiTeBr" A. Ohmura, Y. Higuchi, T. Ochiai, M. Kano, F. Ishikawa, S. Nakano, A. Nakayama, Y. Yamada, and T. Sasagawa, Phys. Rev. B 95, 125203 (2017).

"Nonequilibrium Lattice-driven Dynamics of Stripes in Nickelates using Time-resolved X-ray Scattering" W. S. Lee, Y. F. Kung, B. Moritz, G. Coslovich, R. A. Kaindl, Y. D. Chuang, R. G. Moore, D. H. Lu, P. S. Kirchmann, J. S. Robinson, M. P. Minitti, G. Dakovski, W. F. Schlotter, J. J. Turner, S. Gerber, T. Sasagawa, Z. Hussain, Z. X. Shen, and T. P. Devereaux, Phys. Rev. B 95, 121105(R) (2017).

"Spin-orbit Scattering Visualized in Quasiparticle Interference" Y. Kohsaka,T. Machida, K. Iwaya, M. Kanou, T. Hanaguri, and T. Sasagawa, Phys. Rev. B 95, 115307 (2017).

2016 "Magnetotransport at the LTO-LTT structural transition in La1.48Nd0.4Sr0.12CuO4" P. G. Baity, T. Sasagawa, and D. Popovic, J. Supercond. Nov. Magn. 29, 3031 (2016).

"Crystal Growth and Intrinsic Properties of ACrX2 (A = Cu, Ag; X = S, Se) without a Secondary Phase" R. Yano and T. Sasagawa, Crystal Growth and Design 16, 5618 (2016).

"Anisotropic Superconducting Properties of Noncentrosymmetric PbTaSe2 as a Candidate Exotic Superconductor" H. Namiki and T. Sasagawa, Sci. Adv. Mater. 8, 2097 (2016).

"Thermoelectric Properties in Single Crystals of Non-stoichiometric Compounds AgxCr2+y(S,Se)4 (x ~ 0.74, y ~ 0.42)" R. Yano and T. Sasagawa, Sci. Adv. Mater. 8, 2077 (2016).

"Facile Preparation of YAG:Ce Nanoparticles by Laser Irradiation in Water and their Optical Properties" N. Tsuruoka, T. Sasagawa,T. Yodo, M. Yoshimoto, Osamu Odawara, H. Wada, Springer Plus 5, 325 (2016).

"Bandgap Modulation in Photoexicited Topological Insulator Bi2Te3 via Atomic Displacements" M. Hada, K. Norimatsu, S. Tanaka, S. Keskin, T. Tsuruta, K. Igarashi, T. Ishikawa, Y. Kayanuma, R. J. D. Miller, K. Onda, T. Sasagawa, S. Koshihara, and K. G. Nakamura, J. Chem. Phys. 145, 024504 (2016).

"Observation of Zeeman Effect in Topological Surface State with Distinct Material Dependence" Y.-S. Fu, T. Hanaguri, K. Igarashi, M. Kawamura, M. S. Bahramy, and T. Sasagawa, Nature Commun. 7, 10829 (2016).

2015 "Topologically Protected Surface States in a Centrosymmetric Superconductor β-PdBi2" M. Sakano, K. Okawa, M. Kanou, H. Sanjo, T. Okuda, T. Sasagawa, and K. Ishizaka, Nature Commun. 6, 8595 (2015).

"Ultrafast Electronic State Conversion at Room Temperature utilizing Hidden State in Cuprate Ladder System" R. Fukaya, Y. Okimoto, M. Kunitomo, K. Onda, T. Ishikawa, S. Koshihara, H. Hashimoto, S. Ishihara, A. Isayama, H. Yui, and T. Sasagawa, Nature Commun. 6, 8519 (2015).

"Negative Electronic Compressibility and Tunable Spin Splitting in WSe2" J. M. Riley, W. Meevasana, L. Bawden, M. Asakawa, T. Takayama, T. Eknapakul, T. K. Kim, M. Hoesch, S.-K. Mo, H. Takagi, T. Sasagawa, M. S. Bahramy, and P. D. C. King, Nature Nanotechnology 10, 1043 (2015).

"Point Nodes Persisting Far Beyond Tc in Bi2212" T. Kondo, W. Malaeb, Y. Ishida, T. Sasagawa, T. Tohyama, S. Shin, T. Takeuchi, and H. Sakamoto, Nature Commun. 6, 7699 (2015).

"Ferroelectricity in Underdoped La-based Cuprates" Z. Viskadourakis, S. S. Sunku, S. Mukherjee, B. M. Andersen, T. Ito, T. Sasagawa, and C. Panagopoulos, Scientific Reports 5, 15268 (2015).

"Imaging Ambipolar Two-dimensional Carriers induced by the Spontaneous Electric Polarization of a Polar Semiconductor BiTeI" Y. Kohsaka, M. Kanou, H. Takagi, T. Hanaguri, and T. Sasagawa, Phys. Rev. B 91, 245312, (2015).

"Dynamics of All the Raman-active Coherent Phonons in Sb2Te3 Revealed via Transient Reflectivity"  K. Norimatsu, M. Hada, S. Yamamoto, T. Sasagawa, M. Kitajima, Y. Kayanuma, K. G. Nakamura, J. Appl. Phys. 117, 143102, (2015).

"Direct Spectroscopic Evidence for Phase Competition between the Pseudogap and Superconductivity in Bi2Sr2CaCu2O8+d" M. Hashimoto, E. A. Nowadnick, R.-H. He, I. M. Vishik, B. Moritz, Y. He, K. Tanaka, R. G. Moore, D. Lu, Y. Yoshida, M. Ishikado, T. Sasagawa, K. Fujita, S. Ishida, S. Uchida, H. Eisaki, Z. Hussain, T. P. Devereaux, and Z.-X. Shen, Nature Materials 14, 37 (2015).

2014 "Imaging the Two-component Nature of Dirac-Landau Levels in the Topological Surface State of Bi2Se3" Y.-S. Fu, M. Kawamura, K. Igarashi, H. Takagi, T. Hanaguri, and T. Sasagawa, Nature Physics 10, 815 (2014).

"Two-stage Magnetic-field-tuned Superconductor-insulator Transition in Underdoped La2-xSrxCuO4" X. Shi, P. V. Lin, T. Sasagawa, V. Dobrosavljevic, and D. Popovic, Nature Physics 10, 437 (2014).

"Electronic Structure of a Quasi-Freestanding MoS2 Monolayer" T. Eknapakul, P. D. C. King, M. Asakawa, P. Buaphet, R.-H. He, S.-K. Mo, H. Takagi, K. M. Shen, F. Baumberger, T. Sasagawa, S. Jungthawan, and W. Meevasana, Nano Letters 14, 1312 (2014).

2013 "Ultrafast Charge Localization in a Stripe-phase Nickelate" G. Coslovich, B. Huber, W. -S. Lee, Y. -D. Chuang, Y. Zhu, T. Sasagawa, Z. Hussain, H. A. Bechtel, M. C. Martin, Z. -X. Shen, R. W. Schoenlein, and R. A. Kaindl, Nature Commun. 4, 2643 (2013).

"Discovery of a Single Topological Dirac Fermion in a Strong Inversion Asymmetric Compound BiTeCl" Y. L. Chen, M. Kanou, Z. K. Liu, H. J. Zhang, J. A. Sobota, D. Leuenberger, S. K. Mo, B. Zhou, S.-L. Yang, P. S. Kirchmann, D. H. Lu, R. G. Moore, Z. Hussain, Z. X. Shen, X. L. Qi, and T. Sasagawa, Nature Physics 9, 704 (2013).

"Absence of Superconductivity in the "Hole-doped" Fe pnictide Ba(Fe1-xMnx)2As2: Photoemission and X-ray Absorption Spectroscopy Studies" H. Suzuki, T. Yoshida, S. Ideta, G. Shibata, K. Ishigami, T. Kadono, A. Fujimori, M. Hashimoto, D. H. Lu, Z.-X. Shen, K. Ono, E. Sakai, H. Kumigashira, M. Matsuo, and T. Sasagawa, Phys. Rev. B 88, 100501(R) (2013).

"Unconventional Photonic Change of Charge-density-wave Phase in Two-leg Ladder Cuprate Sr14Cu24O41" R. Fukaya, Y. Okimoto, M. Kunitomo, T. Ishikawa, K. Onda, S. Koshihara, A. Isayama, and T. Sasagawa, J. Phys. Soc. Jpn. 82, 083707 (2013).

"Ultrafast Real Space Dynamics of Photoexcited State in a Layered Perovskite-type Spin Crossover Oxide La1.5Sr0.5CoO4" Y. Okimoto, T. Egawa, R. Fukaya, Y. Matsubara, Y. Yamada, N. Yamaya, T. Ishikawa, K. Onda, S. Koshihara, H. Taniguchi, M. Itoh, A. Isayama, and T. Sasagawa, J. Phys. Soc. Jpn. 82, 074721 (2013).

"Uniaxial Pressure Effects on the Transport Properties in Ba(Fe1-xCox)2As2 Single Crystals" S. Yamaichi, T. Katagiri, and T. Sasagawa, Physica C 494, 62 (2013).

"Memory Effect in a Topological Surface state of Bi2Te2Se" Y.-S. Fu, T. Hanaguri, S. Yamamoto, K. Igarashi, H. Takagi, and T. Sasagawa, ACS Nono 7, 4105 (2013).

"Quantitative Comparison between Electronic Raman spectra and Angle-resolved Photoemission Spectra in Superconducting State of Bi2212" N. T. Hieua, K. Tanakaa, T. Masuia, S. Miyasakaa, S. Tajima, and T. Sasagawa, Physics Procedia 45, 41 (2013).

"Crystal Growth and Physical Properties of the Noncentrosymmetric Superconductor PdBi" K. Okawa, M. Kanou, T. Katagiri, H. Kashiwaya, S. Kashiwaya, and T. Sasagawa, Physics Procedia 45, 101 (2013).

"Real-time Manifestation of Strongly Coupled Spin and Charge Order Parameters in Stripe-ordered Nickelates via Time-resolved Resonant X-ray Diffraction" Y. D. Chuang, W. S. Lee, Y. F. Kung, A.P. Sorini, B. Moritz, R. G. Moore, L. Patthey, M. Trigo, D. H. Lu, P. S. Kirchmann, M. Yi, O. Krupin, M. Langner, Y. Zhu, S. Y. Zhou, D. A. Reis, N. Huse, J. S. Robinson, R. A. Kaindl, R. W. Schoenlein, S. L. Johnson, M. Forst, D. Doering, P. Denes, W. F. Schlotter, J. J. Turner, T. Sasagawa, Z. Hussain, Z. X. Shen, and T. P. Devereaux, Phys. Rev. Lett. 110, 127404 (2013).

"Dependence of Carrier Doping on the Impurity Potential in Transition-Metal-Substituted FeAs-based Superconductors" S. Ideta, T. Yoshida, I. Nishi, A. Fujimori, Y. Kotani, K. Ono, Y. Nakashima, S. Yamaichi, T. Sasagawa, M. Nakajima, K. Kihou, Y. Tomioka, C. H. Lee, A. Iyo, H. Eisaki, T. Ito, S. Uchida, and R. Arita, Phys. Rev. Lett. 110, 107007 (2013).

"Crystal Growth and Electronic Properties of a 3D Rashba Material, BiTeI, with Adjusted Carrier Concentrations" M. Kanou and T. Sasagawa, J. Phys.: Condens. Matter 25, 135801 (2013).
*Selected for an IOPselect.

"Electronic Structure of Rh-based CuRh0.9Mg0.1O2 Oxide Thermoelectrics" P. Vilmercati, E. Martin, C. Parks Cheney, F. Bondino, E. Magnano, F. Parmigiani, T. Sasagawa, and N. Mannella, Phys. Rev. B 87, 125103 (2013).

"Coherent Optical Phonons in a Bi2Se3 Single Crystal Measured via Transient Anisotropic Reflectivity" K. Norimatsu, J. Hu, A. Goto, K. Igarashi, T. Sasagawa, and K. G. Nakamura, Solid State Commun. 157, 58 (2013).

2012 "Phase Competition in Trisected Superconducting Dome" I. M. Vishik, M. Hashimoto, Rui-Hua He, W-S. Lee, F. Schmitt, D. Lu, R. G. Moore, C. Zhang, W. Meevasana, T. Sasagawa, S. Uchida, K. Fujita, S. Ishida, M. Ishikado, Y. Yoshida, H. Eisaki, Z. Hussain, T. P. Devereaux, and Z.-X. Shen, Proc. Natl. Acad. Sci. 109, 18332 (2012).

"電子ドープ型鉄系超伝導体 Ba(Fe1-xTx)2As2 (T = Ni, Cu) の Fe サイト置換効果" 出田真一郎、吉田鉄平、西一郎、藤森淳、小野寛太、組頭広志、中島正道、木方邦弘、富岡康秀、李哲虎、伊豫彰、永崎洋、伊藤利光、中島裕司、松尾明寛、笹川崇男、内田慎一、有田良太郎、 PF NEWS 30, 16 (2012). [第29回PFシンポジウムポスター奨励賞受賞論文]

"Phase Fluctuations and the Absence of Topological Defects in a Photo-excited Charge-ordered Nickelate" W.S. Lee, Y.D. Chuang, R.G. Moore, Y. Zhu, L. Patthey, M. Trigo, D.H. Lu, P.S. Kirchmann, O. Krupin, M. Yi, M. Langner, N. Huse, J.S. Robinson, Y. Chen, S.Y. Zhou, G. Coslovich, B. Huber, D.A. Reis, R.A. Kaindl, R.W. Schoenlein, D. Doering, P. Denes, W.F. Schlotter, J.J. Turner, S.L. Johnson, M. Forst, T. Sasagawa, Y.F. Kung, A.P. Sorini, A.F. Kemper, B. Moritz, T.P. Devereaux, D.-H. Lee, Z.-X. Shen, and Z. Hussain, Nature Commun. 3, 838 (2012).

"Controlling the Carriers of Topological Insulators by Bulk and Surface Doping" B. Zhou, Z.K. Liu, J. G. Analytis, K. Igarashi, S.K. Mo, D.H Lu, R.G. Moore, I.R. Fisher, T. Sasagawa, Z.-X. Shen, Z. Hussain, and Y. L Chen, Semicond. Sci. Technol. 27, 124002 (2012).

"Ultrafast Dynamics of Photoinduced Electronic Phase Modulation in Ladder Cuprate of Sr14-xCaxCu24O41" R. Fukaya, M. Kunitomo, Y. Okimoto, T. Ishikawa, K. Onda, S. Koshihara, H. Yui, and T. Sasagawa, Acta Physica Polonica A 121, 310 (2012).

"Femtosecond Reflection Spectroscopy in La1.5Sr0.5CoO4" T. Egawa, Y. Okimoto, R. Fukaya, K. Onda, T. Ishikawa, S.-Y. Koshihara, A. Isayama, and T. Sasagawa, Acta Physica Polonica A 121, 307 (2012).

"Crystal Growth and Anisotropic Superconducting Properties of Sr2VFeAsO3" T. Katagiri and T. Sasagawa, Physica C 484, 16 (2012).

"Memory Effects in the Charge Response of Lightly Doped La2-xSrxCuO4" I. Raicevic, D. Popovic, C. Panagopoulos, and T. Sasagawa, J. Supercond. Nov. Magn. 25, 1239 (2012).

"Preparation of SiO2-Capped Sr2MgSi2O7:Eu,Dy Nanoparticles with Laser Ablation in Liquid" M. Ishizaki, T. Katagiri, T. Sasagawa, Y. Kitamoto, O. Odawara, and H. Wada, Journal of Nanotechnology 2012, 435205/1-6 (2012).

"Observation of Coherent Higher Frequency A1g Phonons in Bi2Se3 using Femtosecond Time-resolved Reflection Measurement" K. G. Nakamura, J. Hu, K. Norimatsu, A. Goto, K. Igarashi, and T. Sasagawa, Solid State Commun. 152, 902 (2012).

2011 "Photoluminescence of Diamondoid Crystals" W. A. Clay, T. Sasagawa, A. Iwasa, Z. Liu, J. E. Dahl, R. M. K. Carlson, M. Kelly, N. Melosh, and Z.-X. Shen, J. Appl. Phys. 110, 093512 (2011).

"Fabrication of Ferromagnetic Ni(111) Nanoparticles Embedded Epitaxially in (Mg,Ni)O Matrix by Reduction of (Mg0.5Ni0.5)O(111) Epitaxial Thin Film" H. Arai, R. Yamauchi, T. Kiguchi, K. Koyama, K. Kobayashi, T. Suzuki, T. Sasagawa, Y. Kato, N. Tsuchimine, S. Kobayashi, M. Mitsuhashi, S. Kaneko, and M. Yoshimoto, Jpn. J. Appl. Phys. 50, 070206 (2011).

"Evidence for Quantum Skyrmions in a Doped Antiferromagnet" I. Raicevic, D. Popovic, C. Panagopoulos, L. Benfatto, M.B. Silva Neto, E. S. Choi, and T. Sasagawa, Phys. Rev. Lett. 106, 227206 (2011).

"Non-Gaussian Noise in the In-Plane Transport of Lightly Doped La2-xSrxCuO4: Evidence for a Collective State of Charge Clusters" I. Raicevic, D. Popovic, C. Panagopoulos, and T. Sasagawa, Phys. Rev. B 83, 195133 (2011).

"異方的圧力効果の評価と応用" 笹川 崇男, セラミックス 46, 408 (2011).

"Impact of Lithium Composition on the Thermoelectric Properties of the Layered Cobalt Oxide System LixCoO2" T. Motohashi, Y. Sugimoto, Y. Masubuchi, T. Sasagawa, W. Koshibae, T. Tohyama, H. Yamauchi, and S. Kikkawa, Phys. Rev. B 83, 195128 (2011).

"Suppression of Geometrical Barrier in Bi2Sr2CaCu2O8+d Crystals by Josephson Vortex Stacks" Y. Segev, I. Gutman, S. Goldberg, Y. Myasoedov, E. Zeldov, E. H. Brandt, G. P. Mikitik, T. Katagiri, and T. Sasagawa, Phys. Rev. B 83, 104520 (2011).

"Synthesis and Characterization of Thin Films of a Half-Metallic Oxide, Sr2FeMoO6, by Combinatorial Techniques" S. Kadota, Y. Matsumoto and T. Sasagawa, Jpn. J. Appl. Phys. 50, 01BE13 (2011).

"Magnetodielectric Response of Square-coordinated MnO2 Unit in Cubic BiMn7O12" N. Imamura, K. Singh, D. Pelloquin, Ch. Simon, T. Sasagawa, M. Karppinen, H. Yamauchi, and A. Maignan, Appl. Phys. Lett. 98, 072903 (2011).

"Doping Dependence of the (pi,pi) Shadow Band in La-based Cuprates Studied by Angle-resolved Photoemission Spectroscopy" R.-H. He, X. J. Zhou, M. Hashimoto, T. Yoshida, K. Tanaka, S.-K. Mo, T. Sasagawa, N. Mannella, W. Meevasana, H. Yao, M. Fujita, T. Adachi, S. Komiya, S. Uchida, Y. Ando, F. Zhou, Z. X. Zhao, A. Fujimori, Y. Koike, K. Yamada, Z. Hussain, and Z.-X. Shen, New J. Phys. 13, 013031 (2011).

2010 "Massive Dirac Fermion on the Surface of Magnetically Doped Topological Insulator" Y. L. Chen, J.-H. Chu, J. G. Analytis, Z. K. Liu, K. Igarashi, H.-H. Kuo, X. L. Qi, S. K. Mo, R. G. Moore, D. H. Lu, M. Hashimoto, T. Sasagawa, S. C. Zhang, I. R. Fisher, Z. Hussain, and Z.-X. Shen, Science 329, 659 (2010).

"Momentum-Resolved Landau-Level Spectroscopy of Dirac Surface State in Bi2Se3" T. Hanaguri, K. Igarashi, M. Kawamura, H. Takagi, and T. Sasagawa, Phys. Rev. B 82, 081305(R) (2010).
*Selected for a Viewpoint in Physics.

"Chemical Pressure Effects on Magnetic Properties of A2FeMoO6 (A = Ca, Sr, and Ba)" A. Isayama, S. Kadota, H. Yui, and T. Sasagawa, Materials Science and Engineering B 173, 44 (2010).

"Preparation of Infinite-layer Cuprate Compounds (Sr1-xLax)CuO2 and Detailed Phonon Properties in x = 0" R. Nakayama, Y. Tanaka, H. Yui, H. Yamauchi, A.Q.R. Baron, and T. Sasagawa, Materials Science and Engineering B 173, 41 (2010).

"Large Positive Magnetoresistance of the Lightly Doped La2CuO4 Mott Insulator" I. Raicevic, D. Popovic, C. Panagopoulos, and T. Sasagawa, Phys. Rev. B 81, 235104 (2010).

"Doping-Dependent Nodal Fermi Velocity of the High-Temperature Superconductor Bi2Sr2CaCu2O8+d Revealed Using High-Resolution Angle-Resolved Photoemission Spectroscopy" I. M. Vishik, W. S. Lee, F. Schmitt, B. Moritz, T. Sasagawa, S. Uchida, K. Fujita, S. Ishida, C. Zhang, T. P. Devereaux, and Z. X. Shen, Phys. Rev. Lett. 104, 207002 (2010).

"Gigantic Uniaxial Pressure Effect in Single Crystals of Iron-based Superconductors" Y. Nakashima, H. Yui, and T. Sasagawa, Physica C 470, 1063 (2010).

"Environmentally Friendly Refining of Diamond-Molecules via the Growth of Large Single Crystals" A. Iwasa, W. A. Clay, J. E. Dahl, R. M. K. Carlson, Z.-X. Shen, and T. Sasagawa, Crystal Growth and Design 10, 870 (2010).

"Phonon Softening in La1.74Eu0.1Sr0.16CuO4 Studied by Inelastic X-ray Scattering" T. Sasagawa, H. Yui, S. Pyon, H. Takagi, and A.Q.R. Baron, Physica C 470, S51 (2010).

"Phonon Properties in the Simplest Cuprate Compound SrCuO2" R. Nakayama, Y. Tanaka, H. Yui, H. Yamauchi, A.Q.R. Baron, and T. Sasagawa, Physica C 470, S151 (2010).

2009 "Transport Properties of Vortex Matter Governed by the Edge Inductance in Superconducting Bi2Sr2CaCu2O8 Crystals" H. Beidenkopf, Y. Myasoedov, E. Zeldov, E. H. Brandt, G. P. Mikitik, T. Tamegai, T. Sasagawa, C. J. van der Beek, Phys. Rev. B 80, 224526 (2009).

"A Momentum-Dependent Perspective on Quasiparticle Interference in Bi2212" I. M. Vishik, E.A. Nowadnick, W. S. Lee, Z.-X. Shen, B. Moritz, T.P. Devereaux, K. Tanaka, T. Sasagawa, and T. Fujii, Nature Physics 5, 718 (2009).

"Energy Gaps in the Failed High-Tc Superconductor La1.875Ba0.125CuO4" R.-H. He, K. Tanaka, S.-K. Mo, T. Sasagawa, M. Fujita, T. Adachi, N. Mannella, K. Yamada, Y. Koike, Z. Hussain, and Z.-X. Shen, Nature Physics 5, 119 (2009).

"Differences in the High-energy Kink between Hole- and Electron-doped High-Tc Superconductors" M. Ikeda, T. Yoshida, A. Fujimori, M. Kubota, K. Ono, Y. Kaga, T. Sasagawa, and H. Takagi, Phys. Rev. B 80, 184506 (2009).

"Effects of Chemical Pressure on the Fermi Surface and Band Dispersion of the Electron-doped High-Tc Superconductors" M. Ikeda, T. Yoshida, A. Fujimori, M. Kubota, K. Ono, H. Das, T. Saha-Dasgupta, K. Unozawa, Y. Kaga, T. Sasagawa, and H. Takagi, Phys. Rev. B 80, 014510 (2009).

2008 "Diamondoids as Low-k Dielectric Materials" W. A. Clay, T. Sasagawa, M. Kelly, J. E. Dahl, R. M. K. Carlson, N. Melosh, and Z.-X. Shen, Appl. Phys. Lett. 98, 172901(2008).

"Evidence for Charge Glassiness at Low Temperatures in La1.97Sr0.03CuO4" I. Raicevic, J. Jaroszynski, D. Popovic, C. Panagopoulos, and T. Sasagawa, Phys. Rev. Lett. 101, 177004 (2008).

"Measurement of Low Energy Charge Correlations in Underdoped Spin-glass La-based Cuprates using Impedance Spectroscopy" G. R. Jelbert, T. Sasagawa, J.D. Fletcher, T. Park, J. D. Thompson, C. Panagopoulos, Phys. Rev. B 78, 182513 (2008).

"A Route to Tunable Direct Band-gap Diamond Devices: Electronic Structures of Nanodiamond Crystals" T. Sasagawa and Z.-X. Shen, J. Appl. Phys. 104, 073704 (2008).

"Appearance of Universal Metallic Dispersion in a Doped Mott Insulator" S. Sahrakorpi, R. S. Markiewicz, H. Lin, M. Lindroos, X. J. Zhou, T. Yoshida, W. L. Yang, T. Kakeshita, H. Eisaki, S. Uchida, S. Komiya, Y. Ando, F. Zhou, Z. X. Zhao, T. Sasagawa, A. Fujimori, Z. Hussain, Z.-X. Shen, and A. Bansil, Phys. Rev. B 78, 104513 (2008).

"X-ray Imaging of Dispersive Charge Modes in a Doped Mott Insulator near the Antiferromagnet/Superconductor Transition" Y. W. Li, D. Qian, L. Wray, D. Hsieh, Y. Xia, Y. Kaga, T. Sasagawa, H. Takagi, R. S. Markiewicz, A. Bansil, H. Eisaki, S. Uchida, and M. Z. Hasan, Phys. Rev. B 78, 073104 (2008).

"High Energy Dispersion Relations for the High Temperature Bi2Sr2CaCu2O8 Superconductor from Laser-based Angle-Resolved Photoemission Spectroscopy" W. Zhang, G. Liu, J. Meng, L. Zhao, H. Liu, X. Dong, W. Lu, J. S. Wen, Z. J. Xu, G. D. Gu, T. Sasagawa, G. Wang, Y. Zhu, H. Zhang,Y. Zhou, X. Wang, Z. Zhao, C. Chen, Z. Xu, and X. J. Zhou, Phys. Rev. Lett. 101, 017002 (2008).

"Fermi Liquid Behavior and Weakly Anisotropic Superconductivity in Electron-doped Cuprate Sr1-xLaxCuO2" K. H. Satoh, S. Takeshita, A. Koda, R. Kadono, K. Ishida, S. Pyon, T. Sasagawa, and H. Takagi, Phys. Rev. B 77, 224503 (2008).

"Identification of a New Form of Electron Coupling in the Bi2Sr2CaCu2O8 Superconductor by Laser-based Angle-Resolved Photoemission Spectroscopy" W. Zhang, G. Liu, L. Zhao, H. Liu, J. Meng, X. Dong, W. Lu, J. S. Wen, Z. J. Xu, G. D. Gu, T. Sasagawa, G. Wang, Y. Zhu, H. Zhang, Y. Zhou, X. Wang, Z. Zhao, C. Chen, Z. Xu, and X. J. Zhou, Phys. Rev. Lett. 100, 107002 (2008).

"Effects of Annealing on the Electronic Structure of the Electrondoped High-Tc Superconductor Nd1.85Ce0.15CuO4" M Ikeda, T Yoshida, A Fujimori, M Kubota, K Ono, Y Kaga, T. Sasagawa, and H Takagi, J. Phys.: Conf. Series 108, 012016 (2008).

"Temperature Dependence of the Chemical Potential in La2-xSrxCuO4" W Malaeb, T Yoshida, M Hashimoto, M Takizawa, K Ebata, A Fujimori, H Eisaki, T Kakeshita, T. Sasagawa, and S Uchida, J. Phys.: Conf. Series 108, 012018 (2008).

2007

"Abrupt Onset of a Second Energy Gap at the Superconducting Transition of Underdoped Bi2212" W. S. Lee, I. M. Vishik, K. Tanaka, D. H. Lu, T. Sasagawa, N. Nagaosa, T. P. Devereaux, Z. Hussain, and Z.-X. Shen, Nature 450, 81 (2007).

"In-plane Copper-oxygen Bond-stretching Mode Anomaly in Underdoped La2-xSrxCuO4+d Measured with High-resolution Inelastic X-ray Ccattering" J. Graf, M. d'Astuto, P. Giura, A. Shukla, N. L. Saini, A. Bossak, M. Krisch, S.-W. Cheong, T. Sasagawa, and A. Lanzara, Phys. Rev. B 76, 172507 (2007).

"Correlation-Driven Heavy-Fermion Formation in LiV2O4" P. E. Jonsson, K. Takenaka, S. Niitaka, T. Sasagawa, S. Sugai, and H. Takagi, Phys. Rev. Lett. 99, 167402 (2007).

"Study of the Lock-in Transition and Magnetic Anisotropy in Single Crystal La2-xSrxCuO4 by Means of Torque Magnetometry" S. Kohout, T. Schneider, J. Roos, H. Keller, T. Sasagawa, and H. Takagi, Phys. Rev. B 76, 064513 (2007).

"Is There 1/8-anomary of Tc in Ca2-xNaxCuO2Cl2 with a Checkerboard-type Charge Ordering?" D. Hirai, T. Sasagawa, and H. Takagi, Physica C 463-465, 60 (2007).

"The Influence of Static Stripes on Superfluid Density in La1.84-yEuySu0.16CuO4" S. Pyon, T. Sasagawa, and H. Takagi, Physica C 463-465, 56 (2007).

"Lanthanide Substitution Effects in Electron-doped High-Tc Superconductors Studied by Angle-resolved Photoemission Spectroscopy" M. Ikeda, T. Yoshida, A. Fujimori, M. Kubota, K. Ono, K. Unozawa, T. Sasagawa, and H. Takagi, J. Supercond. Nov. Magn. 20, 563 (2007).

"The Hierarchy of Multiple Many-Body Interaction Scales in High-Temperature Superconductors" W. Meevasana, X.J. Zhou, S. Sahrakorpi, W.S. Lee, W.L. Yang, K. Tanaka, N. Mannella, T. Yoshida, D. H. Lu, Y. L. Chen, R.-H. He, H. Lin, S. Komiya, Y. Ando, F. Zhou, W. X. Ti, J. W. Xiong, Z. X. Zhao, T. Sasagawa, T. Kakeshita, K. Fujita, S. Uchida, H. Eisaki, A. Fujimori, Z. Hussain, R. S. Markiewicz, A. Bansil, N. Nagaosa, J. Zaanen, T.P. Devereaux, and Z.-X. Shen, Phys. Rev. B 75, 174506 (2007).

"Absence of Long-ranged Charge Order in NaxCa2-xCuO2Cl2 at x = 0.08" S. Smadici, P. Abbamonte, M. Taguchi, Y. Kohsaka, T. Sasagawa, M. Azuma, M. Takano, and H. Takagi, Phys. Rev. B 75, 075104 (2007).

"Low-Temperature Resistance Noise in Lightly Doped La2-xSrxCuO4" I. Raicevic, J. Jaroszynski, D. Popovic, G. Jelbert, C. Panagopoulos, and T. Sasagawa, Proc. SPIE 6600, 660020 (2007).

"Universal High Energy Anomaly in Angle Resolved Photoemission Spectra of High Temperature Superconductors - Possible Evidence of Spinon and Holon Branches" J. Graf, G.-H. Gweon, K. McElroy, S. Y. Zhou, C. Jozwiak, E. Rotenberg, A. Bill, T. Sasagawa, H. Eisaki, S. Uchida, H. Takagi, D.-H. Lee, and A. Lanzara, Phys. Rev. Lett. 98, 067004 (2007).

"High-temperature Thermoelectric Properties of Delafossite Oxide CuRh1-xMgxO2" H. Kuriyama, M. Nohara, T. Sasagawa, K. Takubo, T. Mizokawa, K. Kimura, and H. Takagi, IEEE Conf. Proc. 2006 International Conference on Thermoelectronics, 97 (2007).

2006

"Phase Diagram in Electron-doped High-Tc Superconductors" T. Sasagawa, K. Unozawa, K. Ohishi, S. Pyon, K. H. Satoh, A. Koda, R. Kadono, and H. Takagi, KEK-MSL Progress Report 2005, 13 (2006).

"Strong and Complex Electron-Lattice Correlation in Optimally Doped Bi2Sr2CaCu2O8+d" G.-H. Gweon, S. Y. Zhou, M. C. Watson, T. Sasagawa, H. Takagi, and A. Lanzara, Phys. Rev. Lett. 97, 227001 (2006).

"Chemical Potential Shift in lightly-doped to optimally-doped Ca2-xNaxCuO2Cl2" H. Yagi, T. Yoshida, A. Fujimori, Y. Kohsaka, M. Misawa, T. Sasagawa, H. Takagi, M. Azuma, and M. Takano, Phys. Rev. B 73, 172503 (2006).

"Elastic Scattering Susceptibility of the High Temperature Superconductor Bi2Sr2CaCu2O8+d: A Comparison between Real and Momentum Space Photoemission Spectroscopies" K. McElroy, G.-H. Gweon, S. Y. Zhou, J. Graf, S. Uchida, H. Eisaki, H. Takagi, T. Sasagawa, D.-H. Lee, and A. Lanzara, Phys. Rev. Lett. 96, 067005 (2006).

2005

"Three-dimensionality of Field-induced Magnetism in a High-Temperature Superconductor" B. Lake, K. Lefmann, N. B. Christensen, G. Aeppli, D. F. McMorrow, H. M. Ronnow, P. Vorderwisch, P. Smeibidl, N. Mangkorntong, T. Sasagawa, M. Nohara, and H. Takagi, Nature Materials 4, 658 (2005).

"Polaronic Behavior of Undoped High-Tc Cuprate Superconductors from Angle-Resolved Photoemission Spectra" O. Rosch, O. Gunnarsson, X.J. Zhou, T. Yoshida, T. Sasagawa, A. Fujimori, Z. Hussain, Z.-X. Shen, and S. Uchida, Phys. Rev. Lett. 95, 227002 (2005).

"電子ドープ型高温超伝導体における異方的圧力効果" 笹川崇男、宇野沢圭一、加賀義弘、高木英典, 高圧力の科学と技術 第15巻, 118 (2005)

"Multiple Bosonic Mode Coupling in Electron Self-Energy of (La2-xSrx)CuO4" X. J. Zhou, J. Shi, T. Yoshida, T. Cuk, W. L. Yang, V. Brouet, J. Nakamura, N. Mannella, S. Komiya, Y. Ando, F. Zhou, W. X. Ti, J. W. Xiong, Z. X. Zhao, T. Sasagawa, T. Kakeshita, H. Eisaki, S. Uchida, A. Fujimori, Z. Zhang, E. W. Plummer, R. B. Laughlin, Z. Hussain, Z.-X. Shen Phys. Rev. Lett. 95, 117001 (2005).

"Phonon Dispersion in La1.64Eu0.2Sr0.16CuO4 High-Tc Superconductor measured by High-resolution Inelastic X-ray Scattering" T. Sasagawa, A. Q. Baron, and H. Takagi, SPring-8 User Experiment Report 15, 161 (2005).

"Oxygen Isotope Effect on Electronic Structure in Bi2Sr2CaCu2Oy: Angle-Resolved Photoemission Spectroscopy" T. Sasagawa, A. Lanzara, G.-H. Gweon, S. Y. Zhou, J. Graf, Suryadijaya, and H. Takagi, Physica (Amsterdam) C 426-431, 436 (2005).

"Oxygen Isotope Effect on Charge/Spin Stripes in La1.8-xEu0.2SrxCuO4" Suryadijaya, T. Sasagawa, and H. Takagi, Physica (Amsterdam) C 426-431, 402 (2005).

"Bulk Electronic State of High-Tc Cuprate La2-xSrxCuO4 Observed by High-energy Angle Integrated and Resolved Photoemission Spectroscopy" S. Kasai, A. Sekiyama, M. Tsunekawa, P.T. Ernst, A. Shigemoto, A. Yamasaki, A. Irizawa, S. Imada, M. Sing, T. Muro, T. Sasagawa, H. Takagi, and S. Suga, J. Electron Spectroscopy and Related Phenomena 144-147, 507 (2005).

"Control of Stripes/Superconductivity Competition in (La,Eu,Sr)2CuO4 Crystals using Uniaxial Pressure" T. Sasagawa, Suryadijaya, K. Shimatani, and H. Takagi, Physica (Amsterdam) B 359-361, 436 (2005).

"Uniaxial Pressure Effect in Electron-doped High Temperature Superconductor Nd1.84Ce0.16CuO4" Y. Kaga, T. Sasagawa, S. Takahashi, K. Unozawa, and H. Takagi, Physica (Amsterdam) B 359-361, 442 (2005).

"Effects of Uniaxial Pressure in Cuprate Ladder Compound" H. Hori, T. Sasagawa, M. Misawa, and H. Takagi, Physica (Amsterdam) B 359-361, 1252 (2005).

2004

"Observation of Compositional Fluctuation by Scanning Superconducting Quantum Interference Device (SQUID) Microscope in Superconducting (La1.8Sr0.2)CuO4" J. Kasai, N. Okazaki, T. Hasegawa, Y. Togawa, T. Sasagawa, J. Shimoyama, K. Kishio, M. Ohtani, T. Fukumura, M. Kawasaki, and H. Koinuma, Jpn. J. Appl. Phys. 43, L1327 (2004).

"Charge Dynamics of Ca2-xNaxCuO2Cl2 as a Correlated Electron System with the Ideal Tetragonal Lattice" K. Waku, T. Katsufuji, Y. Kohsaka, T. Sasagawa, H. Takagi, H. Kishida, H. Okamoto, M. Azuma, and M. Takano, Phys. Rev. B 70, 134501 (2004).

"Gigantic Anisotropic Uniaxial Pressure Effect within CuO2 Plane on Superconductivity of La1.64Eu0.2Sr0.16CuO4: Strain Control of Stripe Criticality" N. Takeshita, T. Sasagawa, T. Sugioka, Y. Tokura, and H. Takagi, J. Phys. Soc. Jpn. 73, 1123 (2004).

"高温超伝導体の電荷ダイナミクスに対する酸素同位体効果" 笹川崇男、高木英典, 未踏科学技術協会 超伝導科学技術研究会 FSST NEWS 104, 6 (2004)

"An Unusual Isotope Effect in a High-Transition-Temperature Superconductor" G.-H. Gweon, T. Sasagawa, S. Y. Zhou, J. Graf, H. Takagi, D.-H. Lee, and A. Lanzara, Nature 430, 187 (2004).

"Dichotomy between Nodal and Antinodal Quasiparticles in Underdoped La2-xSrxCuO4 Superconductors" X. J. Zhou, T. Yoshida, D.-H. Lee, W. L. Yang, V. Brouet, F. Zhou, W. X. Ti, J. W. Xiong, Z. X. Zhao, T. Sasagawa, T. Kakeshita, H. Eisaki, S. Uchida, A. Fujimori, Z. Hussain, and Z.-X. Shen, Phys. Rev. Lett. 92, 187001 (2004).

"高温超伝導体における電荷スピンのストライプ秩序と超伝導特性の一軸圧力制御" 笹川崇男、スルヤディジャヤ、高木英典, 高圧力の科学と技術 第14巻, 10 (2004).

"梯子型銅酸化物における一軸圧力効果" 三澤真人、笹川崇男、堀弘樹、高木英典, 高圧力の科学と技術 第14巻, 11 (2004).

以下、抜粋

2003-1996

"Metallic Behavior of lightly doped La2-xSrxCuO4 with a Fermi Surface Forming an Arc" T. Yoshida, X. J. Zhou, T. Sasagawa, W. L. Yang, P. V. Bogdanov, A. Lanzara, Z. Hussain, T. Mizokawa, A. Fujimori, H. Eisaki, Z.-X. Shen, T. Kakeshita, and S. Uchida, Phys. Rev. Lett. 91, 027001 (2003).

"Uniaxial Pressure Control of Superconductivity via Stripe Instability in La1.64Eu0.2Sr0.16CuO44 Single Crystals" T. Sasagawa, T. Sugioka, N. Takeshita, K. Kitazawa, and H. Takagi, J. Low Temp. Phys. 131, 395 (2003).

"Universal Nodal Fermi Velocity in High Temperature Superconductors" X. J. Zhou, T. Yoshida, A. Lanzara, P. V. Bogdanov, S. A. Keller, E. D. Lu, W. L. Yang, F. Ronning, K. M. Shen, T. Sasagawa, T. Kakeshita, T. Noda, H. Eisaki, S. Uchida, C. T. Lin, F. Zhou, J. W. Xiong, Z. X. Zhao, A. Fujimori, Z. Hussain, and Z.-X. Shen, Nature 423, 398 (2003).

"ARPES Study on Electronic Evolution inCa2-xNaxCuO2Cl2" T. Sasagawa, F. Ronning, Y. Kohsaka, K. M. Shen, T. Yoshida, M. Azuma, M. Takano, Z.-X. Shen, and H. Takagi, Physica (Amsterdam) C 388-389, 307 (2003).

"Angle-Resolved Photoemission Spectroscopy of Na-doped Ca2CuO2Cl2 Single Crystals: Fingerprints of a Magnetic Insulator in a Heavily Underdoped Superconductor" Y. Kohsaka, T. Sasagawa, F. Ronning, T. Yoshida, C. Kim, T. Hanaguri, M. Azuma, M. Takano, Z.-X. Shen, and H. Takagi, J. Phys. Soc. Jpn. 72, 1018 (2003).

"Evolution of a Metal to Insulator Transition in Ca2-xNaxCuO2Cl2, as seen by ARPES" F. Ronning, T. Sasagawa, Y. Kohsaka, K. M. Shen, A. Damascelli, C. Kim, T. Yoshida, N. P. Armitage, D. H. Lu, D. L. Feng, L. L. Miller, H. Takagi, and Z.-X. Shen, Phys. Rev. B 67, 165101 (2003).

"Growth of Na Doped Ca2CuO2Cl2 Single Crystals under High Pressures of Several GPa" Y. Kohsaka, M. Azuma, I. Yamada, T. Sasagawa, T. Hanaguri, M. Takano, and H. Takagi, J. Am. Chem. Soc. 124, 12275 (2002)

"Magnetic Properties and Phase Diagram of Li-doped La2CuO4 Single Crystals: Common Magnetic Response of Hole-Doped CuO2 Planes" T. Sasagawa, P. K. Mang, O. P. Vajk, A. Kaptulnik, and M. Greven, Phys. Rev. B 66, 184512 (2002).

Antiferromagnetic Order Induces by an Applied Magnetic Field in a High-Temperature Superconductor" B. Lake, H. M. Ronnow, N. B. Christensen, G. Aappli, K. Lefmann, D. F. McMorrow, P. Vorderwisch, P. Smeididl, N. Mangkorntong, T. Sasagawa, M. Nohara, H. Takagi, and T. E. Mason, Nature 415, 299 (2002).

"Local Magnetic Properties of Underdoped (La1-xSrx)2CuO4 Single Crystal Probed by Scanning Superconducting Quantum Interference Device Microscopy" J. Kasai, Y. Togawa, T. Sasagawa, J. Shimoyama, K. Kishio, H. Koinuma, and T. Hasegawa, Jpn. J. Appl. Phys. 40, L1359 (2001).

"Magnetization and Resistivity Measurements of the First-Order Vortex Phase Transition in (La1-xSrx)2CuO4" T. Sasagawa, Y. Togawa, J. Shimoyama, A. Kapitulnik, K. Kitazawa, and K. Kishio, Phys. Rev. B 61, 1610 (2000).

"Oxygen Isotope Effect on the In-Plane Penetration Depth in Underdoped La2-xSrxCuO4 Single Crystals" J. Hofer, K. Conder, T. Sasagawa, G. M. Zhao, M. Willemin, H. Keller, and K. Kishio, Phys. Rev. Lett. 84, 4192 (2000).

"Torque Magnetometry on Single-Crystal High Temperature Superconductors near the Critical Temperature: a Scaling Approach" J. Hofer, T. Schneider, J. M. Singer, M. Willemin, H. Keller, T. Sasagawa, K. Kishio, K. Conder, and J. Karpinski, Phys. Rev. B 62, 631(2000).

"Vortex Phase Transition and Vortex State in (La1-xSrx)2CuO4 Single Crystals" T. Sasagawa, Y. Togawa, J. Shimoyama, A. Kapitulnik, K. Kitazawa and K. Kishio, J. Low Temp. Phys. 117, 1399 (1999).

"In-Plane Fourfold Symmetry of the Upper Critical Field Observed in La(Sr)214 Single Crystals" Y. Koyama, T. Sasagawa, Y. Togawa, K. Otzschi, J. Shimoyama, K. Kitazawa and K. Kishio, J. Low Temp. Phys. 117, 551 (1999).

"Vortex Phase Diagram in Bi2Sr2CaCu2Oy Probed by ac-Susceptibility Measurements" T. Sasagawa, T. Fujita, H. Kobayashi, J. Shimoyama, K. Kitazawa, and K. Kishio, Advances in Superconductivity XI, eds. S. Natu and S. Tanaka (Springer-Verlag, 1999), p617.

"Magnetization and Entropy Changes at the First-Order Phase Transition of Vortex-Lattice in (La1-xSrx)2CuO4 Single Crystals" T. Sasagawa, Y. Togawa, J. Shimoyama, K. Kitazawa, and K. Kishio, Advances in Superconductivity XI, eds. S. Natu and S. Tanaka (Springer-Verlag, 1999), P621.

"The Second Magnetization Peak Effect Observed in (La1-xSrx)2CuO4 Single Crystals Under H//ab" Y. Togawa, T. Sasagawa, J. Shimoyama, and K. Kishio, Advances in Superconductivity XI, eds. S. Natu and S. Tanaka (Springer-Verlag, 1999), p613.

"Doping Dependent Density of States and Pseudo-Gap Behavior in La2-xSrxCuO4" A. Ino, T. Mizokawa, K. Kobayashi, A. Fujimori, T. Sasagawa, T. Kimura, K. Kishio, K. Tamasaku, H. Eisaki, and S. Uchida, Phys. Rev. Lett. 81, 2124 (1998).

"Vortex-Lattice Phase Transition in (La1-xSrx)2CuO4 Single Crystals: Universal Scaling of the Phase Transition Lines in HTSC" T. Sasagawa, K. Kishio, Y. Togawa, J. Shimoyama, and K. Kitazawa, Advances in Superconductivity X, eds. K. Osamura and I. Hirabayashi (Springer-Verlag, 1998), p449.

"First-Order Vortex-Lattice Phase Transition in (La1-xSrx)2CuO4 Single Crystals: Universal Scaling of the Transition Lines in High Temperature Superconductors" T. Sasagawa, K. Kishio, Y. Togawa, J. Shimoyama, and K. Kitazawa, Phys. Rev. Lett. 80, 4297 (1998).

"Chemical Potential Shift in Overdoped and Underdoped La2-xSrxCuO4-d" A. Ino, T. Mizokawa, A. Fujimori, K. Tamasaku, H. Eisaki, S. Uchida, T. Kimura, T. Sasagawa, and K. Kishio, Phys. Rev. Lett. 79, 2101 (1997).

"Magnetization Curves of (La1-xSrx)2CuO4-d Single Crystals as Function of x and d" T. Sasagawa, M. Okuya, J. Shimoyama, K. Kishio, and K. Kitazawa, J. Low Temp. Phys. 105, 1201 (1996).

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