Influence of exchange-coupled anisotropies on spin-wave frequencies in magnetic layered systems: Application to Co/CoO

被引：44

作者：

Stamps, RL ^{[1
]}

Camley, RE ^{[1
]}

Hicken, RJ ^{[1
]}

机构：

[1] UNIV EXETER,DEPT PHYS,EXETER EX4 4QL,DEVON,ENGLAND

来源：

PHYSICAL REVIEW B | 1996年 / 54卷 / 06期

关键词：

D O I：

10.1103/PhysRevB.54.4159

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Recent experiments in Co/CoO layered structures have shown a huge effect where the frequency of the lowest spin wave in the ferromagnetic Co has been doubled, apparently due to the interaction with antiferromagnetic CoO. We explore a microscopic model for spin waves in such coupled structures which can explain such an effect. In this model a magnetic material with a significant anisotropy is exchange coupled to a different magnetic material with minimal anisotropy. The shift in the spin-wave frequency increases as either the anisotropy or interface exchange is increased.

引用

页码：4159 / 4164

页数：6

共 13 条

[1]

BLUMENRODER S, 1985, J APPL PHYS, V57, P3684, DOI 10.1063/1.334988

[2]

CAREY MJ, 1992, APPL PHYS LETT, V60, P3060, DOI 10.1063/1.106756

[3]

CAREY MJ, 1993, J APPL PHYS, V73, P6892, DOI 10.1063/1.352426

[4]

ERCOLE A, UNPUB J MAGN MAGN MA

[5]

HILLEBRANDS B, 1987, PHYS REV B, V36, P2450, DOI 10.1103/PhysRevB.36.2450

[6]

JENSEN MRF, 1995, PHYS REV LETT, V7, P3756

[7]

LIN X, 1994, J APPL PHYS, V75, P6676, DOI 10.1063/1.356892

[8]

MALOZEMOFF AP, 1987, PHYS REV B, V35, P3679, DOI 10.1103/PhysRevB.35.3679

[9]

MEIKLEJOHN WH, 1957, PHYS REV, V105, P904, DOI 10.1103/PhysRev.105.904

[10]

NOERTEMANN FC, 1993, PHYS REV B, V47, P11910

← 1 2 →