Vortex glass transition in a random pinning model
arXiv:cond-mat/0111216 · doi:10.1103/PhysRevLett.88.117004
Abstract
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.
arXiv comment7 pages RevTeX, 4 eps figures
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- Melting and structure of the vortex solid in strongly anisotropic layered superconductors with random columnar pins
- Dynamics of vortex glass phase in strongly type II superconductors
- Continuous phase transition of a fully frustrated XY model in three dimensions
- Nature of the vortex-glass order in strongly type-II superconductors
- Dynamics of glass phases in the two-dimensional gauge glass model
- A Zero-Temperature Study of Vortex Mobility in Two-Dimensional Vortex Glass Models
- Phase diagram of randomly pinned vortex matter in layered superconductors: dependence on the details of the point pinning
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