Critical Dynamics of Superconductors in the Charged Regime

Details Critical Dynamics of Superconductors in the Charged Regime Critical Dynamics of Superconductors in the Charged Regime

2003-06-30

arxiv.org/abs/cond-mat/0306749v2

Physics

Condensed Matter

Superconductivity

4 pages

Scientific paper

10.1103/PhysRevLett.92.097004

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 co-efficients 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.

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