Determination of dynamical critical exponents from hysteresis scaling

作者:Zheng, GP*; Zhang, JX
来源:Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, 1998, 58(2): R1187-R1190.
DOI:10.1103/PhysRevE.58.R1187

摘要

A method is proposed to determine the dynamical critical exponent. The method is based on the scaling for dynamical hysteresis resulted from a linearly swept field. We prove that in model A dynamical hysteresis scaling at critical temperature is universal. The nearest-neighbor Ising models are used to demonstrate:such concepts and the dynamical critical exponents can be determined accurately. We also propose a universal relation between static and dynamical critical exponents in Ising class in single-spin-flip dynamics.