Ginzburg-Landau theory for the time-dependent phase field in a two-dimensional d-wave superconductor

Abstract

We derive a finite temperature time-dependent effective theory for the phase $\theta$ of the pairing field, which is appropriate for a 2D conducting electron system with non-retarded d-wave attraction. As for s-wave pairing the effective action contains terms with Landau damping, but their structure appears to be different from the s-wave case due to the fact that the Landau damping is determined by the quasiparticle group velocity $v_g$, which for the d-wave pairing does not have the same direction as the non-interacting Fermi velocity $v_F$. We show that for the d-wave pairing the Landau terms have a linear low temperature dependence and in contrast to the s-wave case are important for all finite temperatures.

4 pages, LaTeX; paper presented at New^3SC-3, Honolulu, Hawaii, USA, 2001. To be published in Physica C

References in corpus (4)

• Impurity-Induced Quasiparticle Transport and Universal Limit Wiedemann-Franz Violation in d-Wave Superconductors
• Phase Fluctuations and Pseudogap Phenomena
• Low-Energy Quasiparticles in Cuprate Superconductors: A Quantitative Analysis
• Finite Temperature Time-Dependent Effective Theory For The Goldstone Field In A BCS-Type Superfluid