Field effect on the dynamics of the Ising spin glass near the percolation threshold

被引：1
作者：
de Lima, K. A. P. [1 ]
Raposo, E. P. [1 ]
Coutinho-Filho, M. D. [1 ]
机构：
[1] Univ Fed Pernambuco, Dept Fis, Lab Fis Teor & Computac, BR-50670901 Recife, PE, Brazil
来源：
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | 2007年 / 386卷 / 02期
关键词：
spin glass; disordered antiferromagnet;
D O I：
10.1016/j.physa.2007.07.014
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The effect of a uniform field H on the dynamics of the Ising spin glass FexZn1-xF2, x = 0.25, is studied through Monte Carlo simulations. The correlation function data are consistent with the droplets picture, with a single scaling variable t/t(w), where t(w) is the waiting time under H. activation over logarithmic energy barriers near the percolation threshold, x(p) = 0.24, and considerable change of the glassy phase for intermediate and high H. (C) 2007 Elsevier B.V. All rights reserved.
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页码：644 / 647
页数：4
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