Density of states and reflectionless tunneling in NS junction with a barrier

M. Schechter; Y. Imry; Y. Levinson (The Weizmann Institute of Science)

arxiv: cond-mat/9709248 · v2 · submitted 1997-09-23 · ❄️ cond-mat.supr-con · cond-mat.mes-hall

Density of states and reflectionless tunneling in NS junction with a barrier

M. Schechter , Y. Imry , Y. Levinson (The Weizmann Institute of Science) This is my paper

classification ❄️ cond-mat.supr-con cond-mat.mes-hall

keywords barriereffectjunctioncriteriondensityreflectionlessstatestunneling

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The effect of the barrier on the proximity effect in normal-superconductor junction is analyzed. A general criterion for the barrier, though large, to be effectively transparent, is given. This criterion is applied to both the conductance of a disordered NS junction (reflectionless tunneling) and the density of states across it, showing that both phenomena stem from the same physical effect.

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Density of states and reflectionless tunneling in NS junction with a barrier

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