Phys. Rev. Lett. 85, 1532–1535 (2000)Zero-Temperature d-Wave Superconducting Phase TransitionReceived 5 April 2000; published in the issue dated 14 August 2000 The Ginzburg-Landau-Wilson theory that describes the disordered-metal– 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. © 2000 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.85.1532
DOI:
10.1103/PhysRevLett.85.1532
PACS:
74.40.+k, 71.30.+h, 72.15.Rn
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