Structures of single vortex and vortex lattice in a {ital d}-wave superconductor
- Department of Physics and Texas Center for Superconductivity, University of Houston, Houston, Texas 77204 (United States)
The structures of a single vortex and vortex lattice in a superconductor with {ital d}{sub {ital x}{sup 2}{minus}{ital y}{sup 2}} symmetry are studied self-consistently employing a recently developed Ginzburg-Landau theory. Near a single vortex, we found that an {ital s}-wave component of the order parameter is always induced, and it causes the local magnetic-field distribution and the {ital d}-wave order parameter to have a fourfold anisotropy. It is shown that there is a strong correlation between the structure of a single vortex and the shape of the vortex lattice. Our numerical calculation indicates that the structure of the vortex lattice is always oblique except for temperatures very close to {ital T}{sub {ital c}} where it becomes triangular. The possible connection of the result with experiment is also discussed. {copyright} {ital 1996 The American Physical Society.}
- OSTI ID:
- 278759
- Journal Information:
- Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 6 Vol. 53; ISSN 0163-1829; ISSN PRBMDO
- Country of Publication:
- United States
- Language:
- English
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