First order transition in three-dimensional systems with fully broken O(3) symmetry

被引:10
作者
Sorokin, A. O. [1 ]
Syromyatnikov, A. V. [1 ]
机构
[1] Petersburg Nucl Phys Inst, St Petersburg 188300, Russia
基金
俄罗斯基础研究基金会;
关键词
PHASE-TRANSITIONS; RENORMALIZATION-GROUP; HEISENBERG-ANTIFERROMAGNET; 2ND-ORDER TRANSITION; TRIANGULAR-LATTICE; XY ANTIFERROMAGNET; CRITICAL EXPONENTS; CRITICAL-BEHAVIOR; MONTE-CARLO; ISING-MODEL;
D O I
10.1134/S1063776111040236
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Systems with fully broken O(3) symmetry are studied by Monte Carlo simulations. Two models of classical Heisenberg magnets in three dimensions are considered: the stacked three-exchange model on a simple cubic lattice and the model on a stacked-triangular lattice with two competing interlayer exchanges. The first order transition is found in both models. Pseudouniversal behavior of the models is found for small size lattices.
引用
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页码:1004 / 1012
页数:9
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