Morphology of phase-separated VO2 films deposited on TiO2-(001) substrate

Youngji Cho, Shodai Aritomi, Teruo Kanki, Koichi Kinoshita, Noriaki Endo, Yukihito Kondo, Daisuke Shindo, Hidekazu Tanaka, Yasukazu Murakami

研究成果: ジャーナルへの寄稿学術誌査読

7 被引用数 (Scopus)

抄録

The basic morphology of phase-separated VO2 films, in which the tetragonal (metallic) phase coexists with the monoclinic (insulating) phase, was studied using transmission electron microscopy. While the phase transformation temperature in an unstrained crystal is approximately 340 K, it was observed that at 298 K, elastic strain (caused by lattice mismatch with the TiO2-(001) substrate) stabilized the tetragonal phase near the VO2/TiO2 boundary. The observed zig-zag-shaped interface of the tetragonal phase was explained by the crystallographic orientation relationship between the tetragonal and monoclinic phases. The observations provide valuable information for future applications of VO2 films.

本文言語英語
ページ(範囲)289-293
ページ数5
ジャーナルMaterials Research Bulletin
102
DOI
出版ステータス出版済み - 6月 2018

!!!All Science Journal Classification (ASJC) codes

  • 材料科学一般
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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