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

G.E. Volovik; N.B. Kopnin

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

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arxiv cond-mat/9610077 v1 pith:Q4VN5I73 submitted 1996-10-09 cond-mat.supr-con

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

N.B. Kopnin , G.E. Volovik This is my paper

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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.

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

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