Magnetic properties of superconductors with strong spin-orbit coupling
- 30 September 2004
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 70 (10), 104521
- https://doi.org/10.1103/physrevb.70.104521
Abstract
We study the response of a superconductor with a strong spin-orbit coupling on an external magnetic field. The Ginzburg-Landau free energy functional is derived microscopically for a general crystal structure, both with and without an inversion center, and for an arbitrary symmetry of the superconducting order parameter. As a by-product, we obtain the general expressions for the intrinsic magnetic moment of the Cooper pairs. It is shown that the Ginzburg-Landau gradient energy in a superconductor lacking inversion symmetry has unusual structure. The general formalism is illustrated using as an example , which is the first known heavy-fermion superconductor without an inversion center.
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