A common Universality class for the three-dimensional Vortex Glass and Chiral Glass?

Details A common Universality class for the three-dimensional Vortex Glass and Chiral Glass? A common Universality class for the three-dimensional Vortex Glass and Chiral Glass?

1997-04-21

arxiv.org/abs/cond-mat/9704169v2

Phys. Rev. B 56, 5918 (1997)

Physics

Condensed Matter

Superconductivity

8 pages, latex, 6 eps figures included. This and other papers of APY can be obtained on-line at http://schubert.ucsc.edu/peter

Scientific paper

10.1103/PhysRevB.56.5918

We present a Monte Carlo study of the d=3 gauge glass and the XY--spin glass models in the vortex representation. We investigate the critical behavior of these models by a scaling analysis of the linear resistivity and current-- voltage characteristics, both in the limits of zero and strong screening of the vortex-interactions. Without screening, both models show a glass transition at a finite temperature and, within the numerical accuracy, exhibit the same critical exponents: z approx 3.1 and nu=1.3 +- 0.3. With strong screening, the finite temperature glass transition is destroyed in both cases and the same exponent nu=1.05 +- 0.1 is found at the resulting zero temperature transition.

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