Anisotropy of Upper Critical Field in Heavy Fermion Superconductors

Author(s): C.-H. Choi and J. A. Sauls
Comments: 12 pages with 5 figures
Journal: Physical Review B 48, 13684 (1993) [DOI]
Abstract: We study the upper critical field for various possible order parameters of heavy fermion superconductors. We pay a particular attention to the question how the anisotropy of upper critical field changes by effects of paramagnetism, impurity scattering, and fermi surface anisotropy in the presence of strong spin-orbit coupling. The paramagnetic limit can have a dramatic effect on the anisotropy in odd-parity superconductors, and provide important information on the symmetry of underlying order parameters. We also discuss the effect of impurity scattering.

Paper: [PDf]

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