Vortex glass transition in a random pinning model

Details Vortex glass transition in a random pinning model Vortex glass transition in a random pinning model

2001-11-12

arxiv.org/abs/cond-mat/0111216v2

Phys. Rev. Lett. 88, 117004 (2002)

Physics

Condensed Matter

Superconductivity

7 pages RevTeX, 4 eps figures

Scientific paper

10.1103/PhysRevLett.88.117004

We study the vortex glass transition in disordered high temperature superconductors using Monte Carlo simulations. We use a random pinning model with strong point-correlated quenched disorder, a net applied magnetic field, longrange vortex interactions, and periodic boundary conditions. From a finite size scaling study of the helicity modulus, the RMS current, and the resistivity, we obtain critical exponents at the phase transition. The new exponents differ substantially from those of the gauge glass model, but are consistent with those of the pure three-dimensional XY model.

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