Role of Cu 4s Band in Cu 2p-XPS of Nd_<2-x>Ce_xCuO_4
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概要
- 論文の詳細を見る
The role of the Cu 4s band in the Cu 27t-XPS of Nd. ..Ce.CuO. is investigated onthe basis of the impurity Anderson model. The mc>del consists of the impurity Cu 3dshell and the conduction and valeutce bands formc+d from the O 2p and Cu 4s bandsunder the tight-binding approximation. Because of the symntetry of the crystal, the3d states couple weakly to the Cu 4s band so that the effect of' the 4s band on the Cu27t-XPS is very small in general. However, in the case where tl're 4s band is lower by afew eV in energy than that estimated by the first-principle calculation, the 4s state isimportant in the electron doping process in Nd, ..Ce.Cu0. because the doped eleciron enters this state.
- 社団法人日本物理学会の論文
- 1990-08-15
著者
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小谷 章雄
SPring-8
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Kotani Akio
Department Of Neurological Surgery Nihon University School Of Medicine.
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SEINO Yasuhiro
Department of Physics,Faculty of Science,Yamagata University
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OKADA Kozo
Department of Physics, Okayama University
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Kotani Akio
Department Of Mechanical Engineering Osaka University
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Okada K
The Graduate School Of Natural Science And Technology Okayama University
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Okada Kozo
Department Of Physics Faculty Of Science Okayama University
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Okada Kozo
The Graduate School Of Natural Science And Technology Okayama University
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Seino Yasuhiro
Department Of Physics Faculty Of Science Tohoku University
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OKADA Kozo
Department of Biological Chemistry, Faculty of Pharmacy, Kinki University
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