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arXiv · cond-mat/9610077

Singularity of the Vortex Density of States in d-wave Superconductors

N. B. Kopnin·G. E. Volovik
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Abstract

In d-wave superconductors, the electronic density of states (DOS) induced by a vortex exhibits 1/|E| divergency at low energies. It is the result of gap nodes in the excitations spectrum outside the vortex core. The heat capacity in two regimes, (T/T_c)^2 >> B/B_{c2} and (T/T_c)^2 << B/B_{c2}, is discussed.

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N. B. Kopnin, G. E. Volovik. 1996-10-09. Singularity of the Vortex Density of States in d-wave Superconductors. https://doi.org/10.1134/1.567283

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