Thickness dependence of magnetic anisotropy in ultrathin Co/GaAs(001) films

被引：9
|
作者：
Madami, M [1 ]
Tacchi, S [1 ]
Gubbiotti, G [1 ]
Carlotti, G [1 ]
Socino, G [1 ]
机构：
[1] Univ Perugia, INFM, Dipartimento Fis, I-06123 Perugia, Italy
来源：
SURFACE SCIENCE | 2004年 / 566卷
关键词：
iron; magnetic films; metallic surfaces; low energy electron diffraction (LEED); light scattering;
D O I：
10.1016/j.susc.2004.05.052
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Brillouin light scattering has been exploited in situ to study spin waves in ultrathin Co/GaAs(0 0 1) films of different thickness in the range between 1 and 7 nm, i.e. both before and after the bee hcp phase transition. A marked evolution of the in-plane anisotropy has been observed in connection with the structural transformation. Measurements of the spin-wave frequency as a function of the in-plane direction and of the intensity of the applied magnetic field, as well as of the incidence angle of light, enabled us to determine the magnetic parameters of the films, including the in-plane anisotropy constants. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：246 / 251
页数：6
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