Polaronic Behavior of Photoelectron Spectra of Fe3O4 Revealed by Both Hard X-ray and Extremely Low Energy Photons
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概要
- 論文の詳細を見る
Hard X-ray and extremely low energy bulk-sensitive photoelectron spectroscopy has been performed in the temperature range of 100–330 K for Fe3O4. In the high temperature phase just above the Verwey transition, the intensity at the Fermi level ($E_{\text{F}}$) is still very weak, but it increases gradually with further increasing the temperature (250 K, 330 K) in consistence with the temperature dependence of the conductivity. The spectral behaviors near $E_{\text{F}}$ with temperature are well explained by the polaronic model, which shows the change from small polaron to large polaron.
- 2010-06-15
著者
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Shin-ichi Kimura
Uvsor Facility Institute For Molecular Science
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SEKIYAMA Akira
Division of Material Physics, Graduate School of Engineering Science, Osaka University
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Junichi Yamaguchi
Division of Materials Physics, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
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Gen Funabashi
Division of Materials Physics, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
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Kimura Masato
Division of Materials Physics, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
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Fujiwara Hidenori
Division of Materials Physics, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
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Kazumasa Kishimoto
Division of Materials Physics, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
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Hiroshi Sugiyama
Division of Materials Physics, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
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Shin Imada
Department of Physical Sciences, Ritsumeikan University, Kusatsu, Shiga 525-8577, Japan
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Satoshi Iguchi
Department of Applied Physics, University of Tokyo, Bunkyo, Tokyo 113-8656, Japan
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Yoshinori Tokura
Department of Applied Physics, University of Tokyo, Bunkyo, Tokyo 113-8656, Japan
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Atsushi Higashiya
SPring-8/Riken, Sayo, Hyogo 679-5148, Japan
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Makina Yabashi
SPring-8/Riken, Sayo, Hyogo 679-5148, Japan
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Kenji Tamasaku
SPring-8/Riken, Sayo, Hyogo 679-5148, Japan
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Tetsuya Ishikawa
SPring-8/Riken, Sayo, Hyogo 679-5148, Japan
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Takahiro Ito
UVSOR Facility, Institute of Molecular Science, Okazaki, Aichi 444-8585, Japan
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Shigemasa Suga
Division of Materials Physics, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
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Hidenori Fujiwara
Division of Materials Physics, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
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Akira Sekiyama
Division of Materials Physics, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
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