Critical Dynamics of Superconductors in the Charged Regime

Courtney Lannert; Smitha Vishveshwara; Matthew P. A. Fisher

doi:10.1103/PhysRevLett.92.097004

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Critical Dynamics of Superconductors in the Charged Regime

Courtney Lannert, Smitha Vishveshwara, Matthew P. A. Fisher

DOI 10.1103/PhysRevLett.92.097004 · Physical Review Letters

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Abstract

We investigate the finite temperature critical dynamics of three-dimensional superconductors in the charged regime, described by a transverse gauge field coupling to the superconducting order parameter. Assuming relaxational dynamics for both the order parameter and the gauge fields, within a dynamical renormalization group scheme, we find a new dynamic universality class characterized by a finite fixed point ratio between the transport coefficients associated with the order parameter and gauge fields, respectively. We find signatures of this universality class in various measurable physical quantities, and in the existence of a universal amplitude ratio formed by a combination of physical quantities.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
YBa2Cu3O7-d Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown