Gradient free energy and intrinsic angular momentum in unconventional superconductors
Journal Article
·
· Physical Review (Section) B: Condensed Matter; (USA)
- Department of Physics, Purdue University, West Lafayette, Indiana 47907 (US)
We discuss the Ginzburg-Landau gradient-free-energy density for unconventional superconductors. In particular, we consider a certain term related to the intrinsic angular momentum of the Cooper pairs. The coefficient of this term vanishes in weak-coupling theory for a pure metal; as pointed out by Gorkov, it can acquire a nonzero value when impurity scattering is present. We display calculations of this coefficient for both even- and odd-parity gaps using the quasiclassical theory of superconductivity.
- OSTI ID:
- 5551269
- Journal Information:
- Physical Review (Section) B: Condensed Matter; (USA), Journal Name: Physical Review (Section) B: Condensed Matter; (USA) Vol. 40:7; ISSN PRBMD; ISSN 0163-1829
- Country of Publication:
- United States
- Language:
- English
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