Nonlinear transverse magnetic moment in anisotropic superconductors
- School of Physics and Astronomy and Minnesota Supercomputer Institute, University of Minnesota, Minneapolis, Minnesota 55455-0149 (United States)
We consider the nonlinear transverse magnetic moment that arises in the Meissner state of superconductors with a strongly anisotropic order parameter. We compute this magnetic moment as a function of applied field and geometry, assuming {ital d}-wave pairing, for realistic samples, finite in all three dimensions, of high-temperature superconducting materials. Return currents, shape effects, and the anisotropy of the penetration depth tensor are all included. We numerically solve the nonlinear Maxwell-London equations for a finite system. Results are discussed in terms of the relevant parameters. The effect, which is a probe of the order parameter symmetry in the bulk, not just the surface, of the sample should be readily measurable if pairing is in a {ital d}-wave state. Failure to observe it would set a lower bound to the {ital s}-wave component. {copyright} {ital 1996 The American Physical Society.}
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 397629
- Journal Information:
- Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 21 Vol. 54; ISSN 0163-1829; ISSN PRBMDO
- Country of Publication:
- United States
- Language:
- English
Similar Records
Linear magnetic susceptibility of anisotropic superconductors of cuboidal shape
Electromagnetic absorption in an anisotropic layered superconductor