Scaling of the random-field Ising model at zero temperature

被引：49
作者：
Swift, MR
Bray, AJ
Maritan, A
Cieplak, M
Banavar, JR
机构：
[1] SEZ INFN,TRIESTE,ITALY
[2] UNIV MANCHESTER,DEPT THEORET PHYS,MANCHESTER M13 9PL,LANCS,ENGLAND
[3] POLISH ACAD SCI,INST PHYS,PL-02668 WARSAW,POLAND
[4] PENN STATE UNIV,DEPT PHYS,UNIVERSITY PK,PA 16802
[5] PENN STATE UNIV,CTR PHYS MAT,UNIVERSITY PK,PA 16802
来源：
EUROPHYSICS LETTERS | 1997年 / 38卷 / 04期
关键词：
D O I：
10.1209/epl/i1997-00237-5
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The exact determination of ground states of small systems is used in a scaling study of the random-field Ising model. While three variants of the model are found to be in the same universality class in 3 dimensions, the Gaussian and bimodal models behave distinctly in 4 dimensions with the latter apparently having a discontinuous jump in the magnetization. A finite-size scaling analysis is presented for this transition.
引用
收藏
页码：273 / 278
页数：6
相关论文
共 49 条
[1]   TRICRITICAL POINTS IN SYSTEMS WITH RANDOM FIELDS [J].
AHARONY, A .
PHYSICAL REVIEW B, 1978, 18 (07) :3318-3327
[2]   LOWERING OF DIMENSIONALITY IN PHASE-TRANSITIONS WITH RANDOM FIELDS [J].
AHARONY, A ;
IMRY, Y ;
MA, SK .
PHYSICAL REVIEW LETTERS, 1976, 37 (20) :1364-1367
[3]   1ST-ORDER AND 2ND-ORDER PHASE-TRANSITIONS WITH RANDOM-FIELDS AT LOW-TEMPERATURES [J].
ANDELMAN, D .
PHYSICAL REVIEW B, 1983, 27 (05) :3079-3080
[4]   X-Ray and neutron scattering, magnetization, and heat capacity study of the 3D random field Ising model - Comment [J].
Belanger, DP ;
Kleemann, W ;
Montenegro, FC .
PHYSICAL REVIEW LETTERS, 1996, 77 (11) :2341-2341
[5]  
BINDER K, 1992, COMPUTATIONAL METHOD
[6]   X-Ray and neutron scattering, magnetization, and heat capacity study of the 3D random field Ising model - Reply [J].
Birgeneau, RJ ;
Feng, Q ;
Harris, QJ ;
Hill, JP ;
Ramirez, AP .
PHYSICAL REVIEW LETTERS, 1996, 77 (11) :2342-2343
[7]  
BIRGENEAU RJ, 1982, J STAT PHYS, V48, P1050
[8]   SCALING THEORY OF THE RANDOM-FIELD ISING-MODEL [J].
BRAY, AJ ;
MOORE, MA .
JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1985, 18 (28) :L927-L933
[9]   RANDOM-FIELD ISING-MODEL ON A BETHE LATTICE [J].
BRUINSMA, R .
PHYSICAL REVIEW B, 1984, 30 (01) :289-299
[10]   MIGDAL-KADANOFF STUDY OF THE RANDOM-FIELD ISING-MODEL [J].
CAO, MS ;
MACHTA, J .
PHYSICAL REVIEW B, 1993, 48 (05) :3177-3182
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