Vortex-glass transition in three dimensions

摘要: We investigate the possibility of a vortex-glass transition in disordered type-II superconductor magnetic field three dimensions by numerical studies simplified model. Monte Carlo simulations at finite temperature and domain-wall renormalization-group calculations {ital T}=0 indicate that d}=3 is just above lower critical dimension d}{sub l}}, though l}}=3 cannot be definitely ruled out. A comparison made with XY} Ising spin glasses. The (effective) correlation-length exponent {nu} dynamical z} are fairly good agreement experiment.