Publication
Title
Long-range Coulomb repulsion effect on a charged vortex in high-temperature superconductors with competing **d**-wave and antiferromagnetic orders
Author
Abstract
Vortex charges in high-temperature superconductor (HTS) are studied by solving the Bogoliubovde Gennes equations based on a model Hamiltonian with antiferromagnetic (AF) and d-wave orders in the presence of the long-range Coulomb repulsion. For a sufficient strength of the AF order, the negative vortex charge is found. A sign change between negative and positive may occur by tuning the long-range Coulomb repulsion strength or the doping parameter. Recent NMR experiments are hopefully understood. We show that the charged vortex can induce a spin-orbit coupling that is important for superconductors with a short coherence length and a large value of the energy gap over the Fermi-level ratio. Fractional flux quanta are possible for HTS.
Language
English
Source (journal)
Physical review : B : solid state. - Lancaster, Pa, 1970 - 1978
Publication
Lancaster, Pa : 2008
ISSN
0556-2805
Volume/pages
78:6(2008), p. 064505,1-064505,5
ISI
000259264900084
Full text (Publishers DOI)
Full text (open access)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 28.05.2009
Last edited 18.05.2017
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