Behavior of Ising spin glasses in a magnetic field.
暂无分享,去创建一个
We study the existence of a spin-glass phase in a field using Monte Carlo simulations performed along a nontrivial path in the field-temperature plane that must cross any putative de Almeida-Thouless instability line. The method is first tested on the Ising spin glass on a Bethe lattice where the instability line separating the spin glass from the paramagnetic state is also computed analytically. While the instability line is reproduced by our simulations on the mean-field Bethe lattice, no such instability line can be found numerically for the short-range three-dimensional model.
[1] G. G. Stokes. "J." , 1890, The New Yale Book of Quotations.
[2] M. Mézard,et al. Spin Glass Theory and Beyond , 1987 .
[3] A. Young,et al. Spin glasses and random fields , 1997 .
[4] Ericka Stricklin-Parker,et al. Ann , 2005 .