Unified Description of the Mid Gap States in Inhomogeneous Superconductors
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概要
- 論文の詳細を見る
Condition for the mid gap state to exist in inhomogeneous superconductor is investigated. On the basis of the Andreev equations, a general expression of the wavefunction of this bound state is derived. Then, the mid gap state is shown to exist only if signs of the pair potential is different, which an quasiparticle feels in the initial and final states in the scattering process described by the Andreev equations. It is also studied why some inhomogeneous systems have no mid gap state. Our results present a unified picture that the absence of the mid gap states results from their hybridization due to the spatial variation of the order parameter and the presence of the normal reflection.
- Physical Society of Japanの論文
- 1996-01-15
著者
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Ohashi Yoji
Institute Of Physics University Of Tsukuba
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Takada Satoshi
Institute For Solid States Physics University Of Tokyo : Department Of Physics College Of General Education University Of Tokyo
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Takada Satoshi
Institute of Physics, University of Tsukuba, Ibaraki 305
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