Optical conductivity of Ce-based filled skutterudites
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概要
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Copyright(c)2004 The Physical Society of JapanA simple tight-binding model is constructed for the description of the electronic structure of some Ce-based filled skutterudite compounds showing an energy gap or pseudogap behavior. Assuming band-diagonal electron interactions on this tight-binding model, the optical conductivity spectrum is calculated by applying the second-order self-consistent perturbation theory to treat the electron correlation. The correlation effect is found to be of great importance on the description of the temperature dependence of the optical conductivity. The rapid disappearance of an optical gap with increasing temperature is obtained as observed in the optical experiment for Ce-based filled-skutterudite compounds.
- 社団法人日本物理学会の論文
- 2004-10-15
著者
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Saso Tetsuro
Department Of Physics Faculty Of Science Saitama University
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MUTOU Tetsuya
Department of Material Science, Interdisciplinary Faculty of Science and Engineering, Shimane Univer
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Mutou Tetsuya
Department Of Material Science Interdisciplinary Faculty Of Science And Engineering Shimane Universi
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