Propagation of a Surface Magnetoelastic Wave in a Ferromagnet Near the Orientation Phase Transition

被引：0

作者：

Mal'tsev, I. V. ^{[1
]}

Bychkov, I. V. ^{[1
,2
]}

Kuz'min, D. A. ^{[1
,2
]}

Shavrov, V. G. ^{[3
]}

机构：

[1] Chelyabinsk State Univ, Chelyabinsk, Russia

[2] South Ural State Univ, Natl Res Univ, Chelyabinsk, Russia

[3] Kotelnikov Inst Radioengn & Elect, Moscow, Russia

来源：

PHYSICS OF THE SOLID STATE | 2020年 / 62卷 / 06期

基金：

俄罗斯基础研究基金会;

关键词：

ferromagnet; magneto elasticity; phase transition; surface wave;

D O I：

10.1134/S1063783420060141

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The frequency dependences of the group velocity and the damping of a magnetoelastic surface wave have been studied at various values of an external magnetic field and various angles of propagation. The group velocity bursts are observed at frequencies, at which peaks of surface wave damping take place. The behavior of a surface magnetoelastic wave is also studied near the orientation phase transition. In the phase transition point, the group velocity is changed by 1%. The dependences of the damping along the surface at various angles of propagation indicate the nonreciprocal wave nature. In this work, all the dependences have been obtained using computer calculations and the ferromagnet parameters are taken to be typical for iron-yttrium garnet.

引用

页码：959 / 962

页数：4

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