TY - JOUR
T1 - Specific heat and low-lying excitations in the mixed state for a type-II superconductor
AU - Nakai, N.
AU - Miranović, P.
AU - Ichioka, M.
AU - Machida, K.
N1 - Copyright:
Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2006
Y1 - 2006
N2 - Low temperature behavior of the electronic specific heat C(T) in the mixed state is by the self-consistent calculation of the Eilenberger theory. In addition to the γT -term (γ is a Sommerfeld coefficient), C(T) has a significant contribution of T2 -term intrinsic in the vortex state. We identify the origin of the T2 term as (i) V-shape density of states in the vortex state and (ii) the Kramer-Pesch effect of vortex-core shrinking upon lowering T. These results for both full-gap and line-node cases reveal that the vortex core is a richer electronic structure beyond the normal core picture.
AB - Low temperature behavior of the electronic specific heat C(T) in the mixed state is by the self-consistent calculation of the Eilenberger theory. In addition to the γT -term (γ is a Sommerfeld coefficient), C(T) has a significant contribution of T2 -term intrinsic in the vortex state. We identify the origin of the T2 term as (i) V-shape density of states in the vortex state and (ii) the Kramer-Pesch effect of vortex-core shrinking upon lowering T. These results for both full-gap and line-node cases reveal that the vortex core is a richer electronic structure beyond the normal core picture.
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U2 - 10.1103/PhysRevB.73.172501
DO - 10.1103/PhysRevB.73.172501
M3 - Article
AN - SCOPUS:33646344273
SN - 1098-0121
VL - 73
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 17
M1 - 172501
ER -