Thermal conductivity and competing orders in d-wave superconductors
Department of Applied Mathematics, University of
Western Ontario, London, Ontario N6A 5B7, Canada
Revised: 9 December 2003
Published online: 2 April 2004
We derive the expression for the thermal conductivity κ in the low-temperature limit in d-wave superconductors, taking into account the presence of competing orders such as spin-density wave, is-pairing, etc. The expression is used for analyzing recent experimental data in . Our analysis strongly suggests that competing orders can be responsible for anomalies in behavior of thermal conductivity observed in those experiments.
PACS: 74.25.Fy – Transport properties (electric and thermal conductivity, thermoelectric effects, etc.) / 74.72.Dn – La-based cuprates / 74.72.-h – Cuprate superconductors (high-Tc and insulating parent compounds)
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2004