Fundamental Properties of a Vortex in a d-Wave Superconductor

Masanori Ichioka; Nobuhiko Hayashi; Naoki Enomoto; Kazushige Machida

doi:10.1143/JPSJ.64.4547

Fundamental Properties of a Vortex in a d-Wave Superconductor

Masanori Ichioka, Nobuhiko Hayashi, Naoki Enomoto, Kazushige Machida

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

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., k̂_x²−k̂_y² 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.

Original language	English
Pages (from-to)	4547-4551
Number of pages	5
Journal	journal of the physical society of japan
Volume	64
Issue number	12
DOIs	https://doi.org/10.1143/JPSJ.64.4547
Publication status	Published - Dec 1995
Externally published	Yes

Keywords

d-wave superconductors
quasi-classical Eilenberger theory
vortex

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1143/JPSJ.64.4547

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abstract = "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., {\^k}x2−{\^k}y2 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.",

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author = "Masanori Ichioka and Nobuhiko Hayashi and Naoki Enomoto and Kazushige Machida",

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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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Fundamental Properties of a Vortex in a d-Wave Superconductor

Abstract

Keywords

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