ID | 48743 |
フルテキストURL | |
著者 |
Muraoka, Y
Graduate School of Natural Science and Technology, Okayama University
Kaken ID
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Saeki, K
Graduate School of Natural Science and Technology, Okayama University
Yao, Y
Graduate School of Natural Science and Technology, Okayama University
Wakita, T
Faculty of Science, Research Laboratory for Surface Science, Okayama University
Hirai, M
Graduate School of Natural Science and Technology, Okayama University
Yokoya, T
Graduate School of Natural Science and Technology, Okayama University
ORCID
Kaken ID
publons
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Eguchi, R
RIKEN/SPring-8
Shin, S
RIKEN/SPring-8
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抄録 | We present the results of angle-resolved photoemission spectroscopy (ARPES) measurements of metallic VO2 thin films. The VO2 thin films have been grown on TiO2 (0 0 1) single crystal substrates using pulsed laser deposition. The films exhibit a first-order metal–insulator transition (MIT) at 305 K. In the ARPES spectra of the metallic phase for the films, the O 2p band shows highly dispersive feature in the binding energy range of 3–8 eV along the Г–Z direction. The periodicity of the dispersive band is found to be 2.2 Å-1 which is almost identical with the periodicity expected from the c-axis length of the VO2 thin films. The overall feature of the experimental band structure is similar to the band structure calculations, supporting that we have succeeded in observing the dispersive band of the O 2p state in the metallic VO2 thin film. The present work indicates that the ARPES measurements using epitaxial thin films are promising for determining the band structure of VO2.
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キーワード | ARPES
VO<sub>2</sub>
Thin film
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発行日 | 2010-08
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出版物タイトル |
Journal of Electron Spectroscopy and Related Phenomena
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巻 | 181巻
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号 | 2-3号
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出版者 | Elsevier
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開始ページ | 249
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終了ページ | 251
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ISSN | 0368-2048
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NCID | AA00697082
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資料タイプ |
学術雑誌論文
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プロジェクト |
エネルギー環境新素材拠点
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オフィシャル URL | http://www.sciencedirect.com/science/article/pii/S0368204810000149
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言語 |
英語
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著作権者 | Copyright © 2010 Elsevier B.V. All rights reserved.
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論文のバージョン | author
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査読 |
有り
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DOI | |
Web of Science KeyUT |