Zero-temperature d-wave superconducting phase transition

Details Zero-temperature d-wave superconducting phase transition Zero-temperature d-wave superconducting phase transition

2000-04-04

arxiv.org/abs/cond-mat/0004055v2

Phys. Rev. Lett. vol. 85, p. 1532 (2000)

Physics

Condensed Matter

Superconductivity

RevTex, 4 pages, 2 ps figs, published version

Scientific paper

10.1103/PhysRevLett.85.1532

The Ginzburg-Landau-Wilson theory that describes the disordered Fermi liquid - d-wave superconductor phase transition at zero temperature is derived at weak coupling. The theory represents an interacting dissipative system of bosonic Cooper pairs in an effective random potential. I show that there exists a wide crossover regime in the theory controlled by a line of Gaussian fixed points, each of which in two dimensions is characterized by a different universal value of the dc critical conductivity. Relation to experiments on overdoped and underdoped cuprates is discussed.

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