The three-dimensional, three-state Potts model in an external field

被引：56
作者：
Karsch, F [1 ]
Stickan, S [1 ]
机构：
[1] Univ Bielefeld, Fak Phys, D-33615 Bielefeld, Germany
来源：
PHYSICS LETTERS B | 2000年 / 488卷 / 3-4期
关键词：
D O I：
10.1016/S0370-2693(00)00902-3
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We analyze the critical behaviour of the 3-d, 3-state Potts model in the presence of an external ordering field. From a finite size scaling analysis on lattices of size up to 70(3) we determine the critical endpoint of the line of first order phase transitions as (beta(c),h(c)) = (0.54938(2),0.000775(10)). We determine the relevant temperature like and symmetry breaking directions at this second order critical point and explicitly verify that it is in the universality class of the 3-d Ising model. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
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页码：319 / 325
页数：7
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