Nodal quasiparticles and classical phase fluctuations in d-wave superconductors

Abstract

We show that the nodal quasiparticles have significant effect on the classical phase fluctuations in a quasi-two-dimensional d-wave superconductor. They give rise to singularities in the temperature behavior of some of the coupling constants in the phase-only effective action. One of the consequences is that the classical XY-model is not adequate for the description of the superconducting fluctuations in d-wave superconductors at low temperatures.

4 pages

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Cited by in corpus (4)

• The low-energy phase-only action in a superconductor: a comparison with the XY model
• Superconducting fluctuations and charge-4$e$ plaquette state at strong coupling
• Phase fluctuations of s-wave superconductors on a lattice
• Classical phase fluctuations in d-wave superconductors