DIPOLE-EXCHANGE MODES IN MULTILAYERS WITH OUT-OF-PLANE ANISOTROPIES

被引：18

作者：

STAMPS, RL

HILLEBRANDS, B

机构：

[1] 2. Physikalisches Institut, Rheinisch-Westfälische Technische Hochschule Aachen

来源：

PHYSICAL REVIEW B | 1991年 / 44卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.44.5095

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The collective modes of a multilayer constructed from alternating ultrathin films of ferromagnetic and nonmagnetic materials are calculated for cases in which the magnetic films have out-of-plane anisotropies. The collective surface and bulk modes of the system are predicted to strongly interact for certain values of the perpendicular anisotropy. A surprising result is the existence of a collective surface mode even when the nonmagnetic layer thicknesses are greater than the magnetic-layer thicknesses. Finally, the effects of small interlayer exchange interactions are examined and shown to result in a large broadening of the collective bulk spin-wave band.

引用

页码：5095 / 5104

页数：10

共 50 条

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