Superfluid density and competing orders in d-wave superconductors

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dc.creatorSharapov, S. G.
dc.creatorCarbotte, J. P.
dc.date2005-11-14
dc.date2006-03-30
dc.date.accessioned2026-07-07T06:46:06Z
dc.date.available2026-07-07T06:46:06Z
dc.descriptionWe derive expressions for the superfluid density $ρ_s$ in the low-temperature limit $T \to 0$ in d-wave superconductors, taking into account the presence of competing orders such as spin-density waves, $i d_{xy}$-pairing, etc. Recent experimental data for the thermal conductivity and for elastic neutron scattering in La$_{2-x}$Sr$_x$CuO$_4$ suggest there are magnetic field induced anomalies that can be interpreted in terms of competing orders. We consider the implications of these results for the superfluid density and show in the case of competing spin-density wave order that the usual Volovik-like $\sqrt{H}$ depletion of $ρ_s(H)$ is replaced by a slower dependence on applied magnetic field. We find that it is crucial to include the competing order parameter in the self-consistent equation for the impurity scattering rate.
dc.description17 pages, RevTeX4, 6 EPS figures; final version published in PRB
dc.identifierhttps://arxiv.org/abs/cond-mat/0511349
dc.identifierhttp://arxiv.org/abs/cond-mat/0511349
dc.identifierPhys. Rev. B 73 (2006) 094519
dc.identifierdoi:10.1103/PhysRevB.73.094519
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/103232
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.titleSuperfluid density and competing orders in d-wave superconductors
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