Singularity of the vortex density of states in d-wave superconductors

被引:89
作者
Kopnin, NB [1 ]
Volovik, GE [1 ]
机构
[1] RUSSIAN ACAD SCI,LD LANDAU THEORET PHYS INST,MOSCOW 117940,RUSSIA
关键词
D O I
10.1134/1.567283
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
In d-wave superconductors, the electronic density of states (DOS) induced by a vortex exhibits a divergence at low energies: N-vortex (E) similar to 1/\E\. This divergence is the result of gap nodes in the spectrum of excitation outside the vortex core. The heat capacity in two regimes, T-2/T-c(2) much greater than B/B-c2 and T-2/T-c(2) much less than B/B-c2, is discussed. (C) 1996 American Institute of Physics.
引用
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页码:690 / 694
页数:5
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