Influence of Non-Magnetic Localized States at an Interface on the Superconducting Proximity Effect
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概要
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The superconducting proximity effect is theoretically investigated in the caseof the presence of non-magnetic localized states at the interface. To describe theproximity effect the resonance scattering by impurities is considered in additionto the direct tunneling of the McMiIlan model. It is shown that the presence ofthe localized states gives an enhanced coupling between a superconductor anda normal metal due to the resonance tunneling. The excitation spectrum of thepresent model is similar to that of the McMil1an model for large impurity concen-trations even without the direct tunneling, whereas the difference between thetwo models is appreciable for small concentrations. Effect of the Coulomb repul-sion between the localized electrons is briefly discussed.
- 社団法人日本物理学会の論文
- 1978-06-15
著者
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Mori Natsuki
Department Of Electrical Engineering Oyama National College Of Technology
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Ozaki Hajime
Department Of Electrical Electronics And Computer Engineering Waseda University
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