Ferromagnetic resonance in multilayer [Fe/Cr]n structures with noncollinear magnetic ordering

被引：17
|
作者：
Drovosekov, AB [1 ]
Kreines, NM
Kholin, DI
Meshcheryakov, VF
Milyaev, MA
Romashev, LN
Ustinov, VV
机构：
[1] Russian Acad Sci, PL Kapitza Phys Problems Inst, Moscow 117334, Russia
[2] Moscow Inst Radio Engn Elect & Automat, Moscow 117464, Russia
[3] Russian Acad Sci, Inst Met Phys, Urals Branch, Ekaterinburg 620219, Russia
来源：
JETP LETTERS | 1998年 / 67卷 / 09期
基金：
俄罗斯基础研究基金会;
关键词：
D O I：
10.1134/1.567738
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The excitation spectrum in an [Fe/Cr](n) multilayer structure with noncollinear magnetic ordering was studied by the ferromagnetic resonance (FMR) method in the frequency interval 9.5-37 GHz at room temperature. Besides an acoustic branch, several additional modes were observed under parallel excitation of resonance. The FMR spectrum was calculated analytically in a biquadratic exchange model, neglecting in-plane anisotropy, for an infinite number of layers in the structure and numerically for a finite number of layers contained in real samples. It was shown that the observed modes correspond to excitation of standing spin waves with wave vectors perpendicular to the film plane. (C) 1998 American Institute of Physics. [S0021-3640(98)01609-0].
引用
收藏
页码：727 / 732
页数：6
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