Superfluid suppression in d-wave superconductors due to disordered magnetism
W. A. Atkinson
DOI 10.1103/PhysRevB.75.024510 · Physical Review B
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Abstract
The influence of static magnetic correlations on the temperature-dependent superfluid density ρs(T) is calculated for d-wave superconductors. In self-consistent calculations, itinerant holes form incommensurate spin density waves (SDW) which coexist with superconductivity. In the clean limit, the density of states is gapped, and ρs(T⪡Tc) is exponentially activated. In inhomogeneously doped cases, the SDW are disordered and both the density of states and ρs(T) obtain forms indistinguishable from those in dirty but pure d-wave superconductors, in accordance with experiments. We conclude that the observed collapse of ρs at x≈0.35 in underdoped YBa2Cu3O6+x may plausibly be attributed to the coexistence of SDW and superconductivity.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O6+x 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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