第54回フロンティア材料研究所講演会 (Prof.Qi Zhang)
開催日時 | 2017年11月13日 10:30 -12:00 |
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開催場所 | R3棟1階会議室 |
主催 | フロンティア材料研究所 |
連絡先 | 伊藤・谷山研究室 安井助教(内線:5626) |
プログラム等
講師: Prof.Qi Zhang (University of New South Wales)
講演テーマ: Chemical solution deposition derived bismuth ferrite thin films with excellent properties
講演概要:
High-quality phase-pure (001) epitaxial bismuth ferrite (BiFeO3; BFO) thin films have been realized by chemical solution deposition. A thorough chemical investigation of the precursor molecular changes during gelation reveals that control of the delicate balance between gelation and salt (metal nitrate) precipitation through solvent evaporation is the key to a homogenous gel, necessary to ultimately obtain high-quality films. Via this method, mixed phase BFO thin film is realized on lanthanum aluminate (LaAlO3, LAO) with coexistence of rhombohedral-like (R) phase and tetragonal-like (T) phase homogeneously mixed at the nanoscale. High quality doped BFO can also be easily achieved.