Spontaneous vortex state and ferromagnetic behavior of type-II p-wave superconductors
A. Knigavko, B. Rosenstein
DOI 10.1103/PhysRevB.58.9354 · Physical Review B
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Abstract
The mixed phase in type-II superconductors with equal spin p-wave pairing is considered using the Ginzburg-Landau approach. Due to direct spin coupling of the condensate to magnetic field the mixed state acquires ferromagnetic properties. For sufficiently large Zeeman coupling a spontaneous vortex phase appears at H=0 and exists and for an arbitrarily large magnetic field. The Meissner phase therefore completely disappears. Vortices become thinner when H grows. There exists a value of Zeeman coupling above which, in the presence of external magnetic field, a mixed phase might occur even for temperatures above Tc. The structure of the vortex core is markedly different from the usual one.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Sr2YRu1-xCuxO6 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 60 | Pressure not reported | onset |
| Sr2RuO4 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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