ORDER OF 2-DIMENSIONAL ISOTROPIC DIPOLAR ANTIFERROMAGNETS

被引：33

作者：

PICH, C

SCHWABL, F

机构：

[1] Institut für Theoretische Physik, Physik Department, Technischen Universität München

来源：

PHYSICAL REVIEW B | 1993年 / 47卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.47.7957

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The question of the existence of order in two-dimensional isotropic dipolar Heisenberg antiferromagnets is studied. It is shown that the dipolar interaction leads to a gap in the spin-wave energy and a nonvanishing order parameter. The resulting finite Neel temperature is calculated for a square lattice by means of linear spin-wave theory.

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页码：7957 / 7960

页数：4

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