X-Ray Photoemission Spectroscopic Study on the Electronic States in the Mixed System between Charge-Transfer and Mott-Hubbard Type Metals : Co_<0.91>S and V_<0.91>S
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概要
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In order to study the change of the electronic states i'rorn the charge-transfer(CT) type metalto the lVIott-Hubbard(IVIH) one, X-ray photoenuission spectra are measured on the Nips-type(Coj .V.)0.91S (I< 0.50) and V0.91S. The asytnnuetry parameter a for S 2s and 2p core levelspectra decrease with increasing x. This result indicates that the local density of states of Satoms at the Ferrni level decreases as x increases; the systeun changes from the CT-type metalto the MH-one with x. The change in V 2p line shape with I suggests the possibility of theconsiderable hybridization between V 3d and S 3p in (Coj .V.)0.9IS at lower x region. Thisfeature would be related to the appearance of the extra peak at binding energy E3 : 2 -3 eV inthe valence band X-ray photoemission spectra.
- 社団法人日本物理学会の論文
- 1996-05-15
著者
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FUJIMORI Atsushi
Department of Physics and Department of Complexity Science and Engineering, University of Tokyo
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的場 優
九大・工
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Matoba M
Department Of Applied Quantum Physics And Nuclear Engineering Graduate School Of Engineering Kyushu
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ANZAI Shuichiro
Faculty of Science and Technology, Keio University
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MATOBA Masanori
Faculity of Science and Technology,Keio University
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Anzai S
Department Of Applied Physics And Phyaico-lnformatics Keio University
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Anzai Shuichiro
Faculty Of Engineering Keio University
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Motohashi Teruki
Faculty Of Science And Technology Keio University
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Abe Shuya
The Research Institute For Iron Steel And Other Metals Tohoku University
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Fujimori Atsushi
Department Of Complexity Science And Engineering And Department Of Physics University Of Tokyo
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的場 優
九州産業大学工学部
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Mamori Takeshi
Faculty Of Science And Technology Keio University
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HAYASHI Keiso
Faculty of Science and Technology,Keio University
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Hayashi Keiso
Faculty Of Science And Technology Keio University
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MOTOHASHI Teruki
Faculty of Engineering, Hokkaido University
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