A1 Journal article (refereed), original research

Quasiclassical approach to vortex-induced suppression of the superconducting electron density in d-wave superconductors


Publication Details

Authors: Laiho R, Lähderanta Erkki, Safonchik M, Traito K B

Publisher: American Physical Society

Publication year: 2004

Language: English

Related journal or series: Physical review B: Condensed matter and materials physics

Volume number: 69

Issue number: 9

ISSN: 1098-0121

eISSN: 1538-4489

JUFO level of this publication: 0

Digital Object Identifier (DOI): http://dx.doi.org/10.1103/PhysRevB.69.094508

Open Access: Not an Open Access publication


Abstract

Quasiclassical Eilenberger equations are solved numerically for the case
of an isolated two-dimensional vortex in a d-wave superconductor. The
asymptotical behavior of the amplitude and the phase of the pairing
potential, superconducting current, and superconducting electron density
at long distances from the vortex core are obtained. The local
Doppler-shift (DS) method is found to work reasonably well for
description of the superconducting electron density at distances longer
than the coherence length at low temperatures. Nonlocal effects are
important inside the vortex core and for a description of the effects of
the fourfold vortex symmetry outside the core. It is also shown that at
higher temperatures the DS method should be modified by including a
pairing potential calculated self-consistently.


Last updated on 2019-22-10 at 14:00