DIPOLAR ANTIFERROMAGNETISM IN THE SPIN-WAVE APPROXIMATION

被引：16

作者：

CORRUCCINI, LR

WHITE, SJ

机构：

[1] Department of Physics, University of California, Davis

来源：

PHYSICAL REVIEW B | 1993年 / 47卷 / 02期

关键词：

D O I：

10.1103/PhysRevB.47.773

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The spin-wave Hamiltonian for a two-sublattice antiferromagnet with purely dipolar interactions is diagonalized. The simple-cubic (sc) lattice is solved as an example, and is found to exhibit zero-point-motion corrections to the Neel state that are much larger than those of the nearest-neighbor sc Heisenberg antiferromagnet. The two-dimensional square dipolar lattice is found not to exhibit long-range order at finite temperature in this approximation.

引用

页码：773 / 777

页数：5

共 17 条

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