Singularity of the vortex density of states in d-wave superconductors
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.
- Publication:
-
Soviet Journal of Experimental and Theoretical Physics Letters
- Pub Date:
- November 1996
- DOI:
- 10.1134/1.567283
- arXiv:
- arXiv:cond-mat/9610077
- Bibcode:
- 1996JETPL..64..690K
- Keywords:
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- Condensed Matter - Superconductivity
- E-Print:
- LaTeX file, 8 pages, no figures, submitted to JETP Letters