journal article·2022-04-26Open access

Repeatable Photoinduced Insulator-to-Metal Transition in Yttrium Oxyhydride Epitaxial Thin Films

Yuya Komatsu, Ryota Shimizu, Ryuhei Sato, Markus Wilde, Kazunori Nishio, Takayoshi Katase, Daiju Matsumura, Hiroyuki Saitoh, Masahiro Miyauchi, Jonah R. Adelman, Ryan M. L. McFadden, Derek Fujimoto, John O. Ticknor, Monika Stachura, Iain McKenzie, Gerald D. Morris, W. Andrew MacFarlane, Jun Sugiyama, Katsuyuki Fukutani, Shinji Tsuneyuki, Taro Hitosugi

Chemistry of Materials· Volume 34· Issue 8

Abstract

繰り返し可能な光誘起絶縁体-金属転移をYOxHyエピタキシャル薄膜で見いだした。紫外レーザーの照射により電気抵抗の温度依存性が絶縁体的な振る舞いから金属的なものに変化した。Ar中で125℃でアニールすると絶縁体に戻り、紫外レーザーを照射すると再度金属的な状態に戻った。第一原理計算の結果、伝導は八面体サイトの水素の電荷状態の変化に起因することが示された。
Only a short abstract or summary was supplied by the source.
Source: openalex_inverted_index · Quality: short

Research context

OpenAlex topics: Hydrogen Storage and Materials · Nuclear Materials and Properties · Catalytic Processes in Materials Science

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Affiliations

School of Materials and Chemical Technology, Tokyo Institute of Technology, Tokyo 152-8552, Japan

PRESTO, Japan Science and Technology Agency, Saitama 332-0012, Japan

Department of Physics, University of Tokyo, Tokyo 113-0033, Japan

Institute of Industrial Science, The University of Tokyo, Tokyo 153-8505, Japan

Laboratory for Materials and Structures, Tokyo Institute of Technology, Yokohama 226-8503, Japan

Materials Sciences Research Center, Japan Atomic Energy Agency, 1-1-1, Hyogo 679-5148, Japan

Quantum Beam Science Research Directorate, National Institute for Quantum and Radiological Science and Technology, Hyogo 679-5148, Japan

Department of Chemistry, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada

Stewart Blusson Quantum Matter Institute, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada

TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada

Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada

Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada

Comprehensive Research Organization for Science and Society (CROSS) Neutron Science and Technology Center Neutron Science and Technology Center, Tokai, Ibaraki 319-1106, Japan

Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan

Funding

AGC · Core Research for Evolutional Science and Technology · Precursory Research for Embryonic Science and Technology · Japan Society for the Promotion of Science

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