Density of States in the Energy Gap in the Superconducting Transition Metal Alloy
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概要
- 論文の詳細を見る
For a model introduced in a preceding paper for the binary alloy of superconducting transition metals, the density of states is investigated. In the case of single impurity, the bound state is shown to appear in the energy gap if and only if the intraatomic Coulomb repulsion is stronger in the impurity atom than in the host atom. In the case of the finite concentration, it is shown both in the c-linear and the coherent potential approximations that this bound state broadens and constitutes the impurity band in the energy gap if the Coulomb repulsion is stronger in the impurity atom. If the Coulomb repulsion is weaker in the impurity, on the other hand, the impurity band is shown not to appear in the energy gap.
- 理論物理学刊行会の論文
- 1974-09-25
著者
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Takano Fumihiko
Department Of Physics Tokyo University
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Tankei Katsuichi
Department Of Physics Tokyo University Of Education
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TAKANO Fumihiko
Institute of Physics, University of Tsukuba
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- Effect of the Coulomb Interaction between d Electrons and of the d-s Pairing Interaction on Superconductivity in Dilute Alloys
- Effective Field Approximatioin for Random Ordered Phase
- Kondo Effect in Superconductor
- Density of States in the Energy Gap in the Superconducting Transition Metal Alloy
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- Concentration Expansion for Random Ising Systems
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