Vortex glass transition in a random pinning model |
| |
Authors: | Vestergren Anders Lidmar Jack Wallin Mats |
| |
Institution: | Condensed Matter Theory, Royal Institute of Technology, SCFAB, SE-106 91 Stockholm, Sweden. |
| |
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, long-range 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 close to those of the pure three-dimensional XY model. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|