Abstract
We consider the χ 0 -dependence of the density of states inside the normal metal of a superconductor-normal metal-superconductor (SNS) junction. Here χ 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 χ 0 increases and closes at χ 0 = π. Both the analytical expressions for the χ 0 -dependence of the density of states and the results of numerical simulations are presented.
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Zhou, F., Charlat, P., Spivak, B. et al. Density of States in Superconductor-Normal Metal-Superconductor Junctions. Journal of Low Temperature Physics 110, 841–850 (1998). https://doi.org/10.1023/A:1022628927203
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DOI: https://doi.org/10.1023/A:1022628927203