Interaction of Phase-Conjugate Acoustic Waves with Discrete Modes of Elastic Vibrations in a Magnet

被引：0

作者：

Moshkin, V. V. ^{[1
]}

Preobrazhensky, V. L. ^{[2
]}

机构：

[1] Russian Technol Univ MIREA, Joint Int Lab Crit & Supercrit Phenomena Funct El, Moscow 119454, Russia

[2] Russian Acad Sci, Prokhorov Gen Phys Inst, Moscow 119991, Russia

来源：

PHYSICS OF WAVE PHENOMENA | 2020年 / 28卷 / 03期

基金：

俄罗斯基础研究基金会;

关键词：

MAGNETOELASTIC WAVES; RESONANCES;

D O I：

10.3103/S1541308X20030140

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Experimental investigation is given to overthreshold parametric phase conjugation of ultrasound waves with the frequency of 22 MHz under resonant excitation of discrete acoustic modes with the frequencies of 0.214 and 1.248 MHz in the antiferromagnetic single crystal of alpha-Fe2O3. It is shown that nonlinear interaction with discrete modes is accompanied by amplitude and phase modulation of traveling phase-conjugate ultrasound waves. In processes of Raman scattering by discrete modes the modulation depth can amount to 100%.

引用

页码：285 / 289

页数：5

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