TY - JOUR
T1 - Fundamental Properties of a Vortex in a d-Wave Superconductor
AU - Ichioka, Masanori
AU - Hayashi, Nobuhiko
AU - Enomoto, Naoki
AU - Machida, Kazushige
PY - 1995/12
Y1 - 1995/12
N2 - The vortex core structure in a d-wave superconductor is analyzed on the basis of the quasi-classical Eilenberger theory beyond the Ginzburg-Landau framework. The current and magnetic field distributions around an isolated vortex break the circular symmetry observed in s-wave pairing and show fourfold symmetry, reflecting the internal degrees of freedom in d-wave pairing, i.e., k̂x2−k̂y2 in reciprocal space through the low lying quasi-particle excitations. The peculiar orientation of the flux line lattice observed recently in a cuprate is discussed in light of the present theory.
AB - The vortex core structure in a d-wave superconductor is analyzed on the basis of the quasi-classical Eilenberger theory beyond the Ginzburg-Landau framework. The current and magnetic field distributions around an isolated vortex break the circular symmetry observed in s-wave pairing and show fourfold symmetry, reflecting the internal degrees of freedom in d-wave pairing, i.e., k̂x2−k̂y2 in reciprocal space through the low lying quasi-particle excitations. The peculiar orientation of the flux line lattice observed recently in a cuprate is discussed in light of the present theory.
KW - d-wave superconductors
KW - quasi-classical Eilenberger theory
KW - vortex
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U2 - 10.1143/JPSJ.64.4547
DO - 10.1143/JPSJ.64.4547
M3 - Article
AN - SCOPUS:21344441887
SN - 0031-9015
VL - 64
SP - 4547
EP - 4551
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
IS - 12
ER -