ANISOTROPIC EXCHANGE INTERACTION IN CR2AS

被引：7

作者：

ISHIMOTO, K

OKONOGI, M

OHOYAMA, K

NAKAJIMA, K

OHASHI, M

YAMAUCHI, H

YAMAGUCHI, Y

FUNAHASHI, S

机构：

[1] TOHOKU UNIV,DEPT PHYS,SENDAI,MIYAGI 980,JAPAN

[2] JAPAN ATOM ENERGY RES INST,DEPT MAT SCI & ENGN,TOKAI,IBARAKI 31911,JAPAN

来源：

PHYSICA B | 1995年 / 213卷

关键词：

D O I：

10.1016/0921-4526(95)00148-3

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Neutron elastic and inelastic scattering was performed on a single crystal of the antiferromagnetic compound Cr2As. The temperature dependence of the Cr(I) sublattice magnetization has a peculiar form, compared with that of Cr(II). The spin-wave dispersion relation was obtained up to the zone boundary along the [001] axis and up to 12 meV along the [100] axis. The magnon energy gap is found to obey almost the same temperature dependence as that of the Cr(I) sublattice magnetization. These results suggest that an anisotropic exchange interaction plays an important role in the magnetic behavior of Cr2As.

引用

页码：336 / 338

页数：3

共 8 条

[1] ELECTRONIC BAND STRUCTURES OF CU2SB-TYPE INTERMETALLIC COMPOUNDS [J].