1ST-ORDER TRANSITION IN THE HEXAGONAL-CLOSE-PACKED LATTICE WITH VECTOR SPINS

被引：24

作者：

DIEP, HT

机构：

[1] Laboratoire de Magnétisme des Surfaces, Université Paris 7, 75251 Paris CEDEX 05

来源：

PHYSICAL REVIEW B | 1992年 / 45卷 / 06期

关键词：

D O I：

10.1103/PhysRevB.45.2863

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

By extensive Monte Carlo simulations, we show that the magnetic phase transition is of first order in the hexagonal-close-packed lattice with vector (XY and Heisenberg) spins interacting via isotropic antiferromagnetic nearest-neighbor bonds. Despite the infinite ground-state degeneracy, the system is shown to retain only the collinear spin configurations at finite temperature, in agreement with a theoretical conjecture.

引用

页码：2863 / 2867

页数：5

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