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.

LaTeX file, 8 pages, no figures, submitted to JETP Letters

References in corpus (3)

• The Nonlinear Meissner Effect in Unconventional Superconductors
• Vortex structure in $d$-wave superconductors
• Vortex State in a d-Wave Superconductor

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