Gradient free energy and intrinsic angular momentum in unconventional superconductors
C. H. Choi, Paul Muzikar
DOI 10.1103/PhysRevB.40.5144 · Physical Review B
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Abstract
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.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| UPt3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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