Investigation of the Effect of Oxygen on the Near-Surface Electron Accumulation in Nonpolar m-Plane (10\bar{1}0) InN Film by Hard X-ray Photoelectron Spectroscopy
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概要
- 論文の詳細を見る
A strong electron accumulation was observed in a near-surface region of an as-grown nonpolar m-plane (10\bar{1}0) InN film by analyzing the valence band hard X-ray photoelectron spectra as a function of the take-off angle. In addition, two oxygen chemical states correlated with electron carrier concentration were observed in the O 1s core-level spectra. By comparing with the oxygen concentration in a bulk-like region, the amount of oxygen drastically increased in a near-surface region, suggesting that the oxygen atoms in the near-surface region act as donors to contribute to the near-surface electron accumulation layer.
- 2013-08-25
著者
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Yamaguchi Tomohiro
Department Of Applied Chemistry Faculty Of Engineering Kumamoto University
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Kaneko Masamitsu
Research Center For Integrated Quantum Electronics (rciqe) Hokkaido University
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Nanishi Yasushi
Wcu Hybrid Materials Program Department Of Materials Science And Engineering Seoul National University
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Imura Masataka
Wide Bandgap Materials Group E&em Division Optical And Electronic Materials Unit National Institute For Materials Science
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Sakata Osami
Synchrotron X-ray Station At Spring-8 National Institute For Materials Science
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Yang Anli
Synchrotron X-ray Station At Spring-8 National Institute For Materials Science
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Kobayashi Keisuke
Synchrotron X-ray Station At Spring-8 National Institute For Materials Science
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Yamashita Yoshiyuki
Synchrotron X-ray Station At Spring-8 National Institute For Materials Science
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Kobayashi Keisuke
Synchrotron X-ray Station at SPring-8, National Institute for Materials Science, Sayo, Hyogo 679-5148, Japan
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Yoshikawa Hideki
Synchrotron X-ray Station at SPring-8, National Institute for Materials Science, Sayo, Hyogo 679-5148, Japan
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Ueda Shigenori
Synchrotron X-ray Station at SPring-8, National Institute for Materials Science, Sayo, Hyogo 679-5148, Japan
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Kaneko Masamitsu
Research Organization of Science and Engineering, Ritsumeikan University, Kusatsu, Shiga 525-8577, Japan
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Yang Anli
Synchrotron X-ray Station at SPring-8, National Institute for Materials Science, Sayo, Hyogo 679-5148, Japan
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Sakata Osami
Synchrotron X-ray Station at SPring-8, National Institute for Materials Science, Sayo, Hyogo 679-5148, Japan
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