Density of States in Superconductor-Normal Metal-Superconductor Junctions |
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| Authors: | F Zhou P Charlat B Spivak B Pannetier |
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| Affiliation: | (1) Physics Department, University of Washington, Seattle, Washington 98195, USA;(2) Centre de Recherches sur les Très Basses Températures, C.N.R.S., Laboratoire associé à l'Université Joseph Fourier, F-38042 Grenoble, France |
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| Abstract: | We consider the 
0
-dependence of the density of states inside the normal metal of a superconductor-normal metal-superconductor (SNS) junction. Here
0
is the phase difference of two superconductors of the junction. It is shown that in the absence of electron-electron interaction the energy dependence of the density of states has a gap which decreases as
0
increases and closes at
0
=  . Both the analytical expressions for the
0
-dependence of the density of states and the results of numerical simulations are presented. |
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| Keywords: | |
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