Nodal quasiparticles and classical phase fluctuations in d-wave superconductors

K. V. Samokhin; B. Mitrovic

doi:10.1103/physrevlett.92.057002

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Nodal quasiparticles and classical phase fluctuations in d-wave superconductors

K. V. Samokhin·B. Mitrovic

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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.

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K. V. Samokhin, B. Mitrovic. 2003-08-12. Nodal quasiparticles and classical phase fluctuations in d-wave superconductors. https://doi.org/10.1103/physrevlett.92.057002

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