Study of the de Almeida-Thouless Line Using Power-Law Diluted One-Dimensional Ising Spin Glasses

被引：88
作者：
Katzgraber, Helmut G. [1 ,2 ]
Larson, Derek [3 ]
Young, A. P. [3 ]
机构：
[1] ETH, CH-8093 Zurich, Switzerland
[2] Texas A&M Univ, Dept Phys, College Stn, TX 77843 USA
[3] Univ Calif Santa Cruz, Dept Phys, Santa Cruz, CA 95064 USA
来源：
PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 17期
关键词：
ORDERED PHASE; BEHAVIOR;
D O I：
10.1103/PhysRevLett.102.177205
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We test for the existence of a spin-glass phase transition, the de Almeida-Thouless line, in an externally applied (random) magnetic field by performing Monte Carlo simulations on a power-law diluted one-dimensional Ising spin glass for very large system sizes. We find that a de Almeida-Thouless line occurs only in the mean-field regime, which corresponds, for a short-range spin glass, to dimension d larger than 6.
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页数：4
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