Density of States in Superconductor - Normal Metal - Superconductor Junctions

Details Density of States in Superconductor - Normal Metal - Superconductor Junctions Density of States in Superconductor - Normal Metal - Superconductor Junctions

1997-07-05

arxiv.org/abs/cond-mat/9707056v2

Journal of Low Temp. Phys. 110, 841 (1998)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

7 pages with 4 included epsf figures, published version with small changes

Scientific paper

10.1134/1.567374

We consider the chi_0 dependence of the density of states inside the normal metal of a superconductor - normal metal - superconductor (SNS) junction.Here chi_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 chi_0 increases and closes at chi_0= pi. Both the analytical expressions for the chi_0 dependence of the density of states and the results of numerical simulations are presented.

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