Spin diffusion in 2D XY ferromagnet with dipolar interaction

被引：8

作者：

Kashuba, A ^{[1
]}

Abanov, A ^{[1
]}

Pokrovsky, VL ^{[1
]}

机构：

[1] TEXAS A&M UNIV,DEPT PHYS,COLLEGE STN,TX 77843

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 77卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.77.2554

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In the ordered phase of 2D XY ferromagnet, the dipole force induces strong interaction between spin waves in the long-wave limit. This interaction leads to transformation of the spin-wave excitation into a new soft mode in an intermediate range of wave vectors, limited in magnitude and direction, and into an anomalous anisotropic diffusion mode at long wavelengths. The dissipation of spin waves at short wavelengths is found to be highly anisotropic.

引用

页码：2554 / 2557

页数：4

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