Ginzburg-Landau equations for layered p-wave superconductors
- Texas Center for Superconductivity, University of Houston, Houston, Texas 77204 (United States)
- Department of Physics, University of Hong Kong, Pokfulam Road, Hong Kong (China)
Based on Gor{close_quote}kov{close_quote}s theory of weakly coupled superconductors, the Ginzburg-Landau equations for layered p-wave superconductors are derived, the order parameter of which is assumed to belong to a nontrivial two-dimensional representation. This calculation allows us to microscopically determine the expansion coefficients of the Ginzburg-Landau free-energy functional with respect to the order parameter. The main feature of the vortex solution is briefly discussed. It is found that the extreme condition for the nonaxisymmetric singly quantized vortices is not ensured in the weak-coupling limit. If the discrete crystal symmetry is included, the axisymmetric singly quantized vortex is stable. In addition, the upper critical field is also solely determined within the weak-coupling framework. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 550521
- Journal Information:
- Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 21 Vol. 56; ISSN 0163-1829; ISSN PRBMDO
- Country of Publication:
- United States
- Language:
- English
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