Nonreciprocal propagation of surface acoustic wave in Ni/LiNbO3

被引：100

作者：

Sasaki, R. ^{[1
]}

Nii, Y. ^{[1
]}

Iguchi, Y. ^{[1
]}

Onose, Y. ^{[1
]}

机构：

[1] Univ Tokyo, Dept Basic Sci, Tokyo 1538902, Japan

来源：

PHYSICAL REVIEW B | 2017年 / 95卷 / 02期

基金：

日本学术振兴会;

关键词：

SOUND;

D O I：

10.1103/PhysRevB.95.020407

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigated surface acoustic wave propagation in a Ni/LiNbO3 hybrid device. We found that the absorption and phase velocity are dependent on the sign of the wave vector, which indicates that the surface acoustic wave propagation has nonreciprocal characteristics induced by simultaneous breaking of time-reversal and spatial inversion symmetries. The nonreciprocity was reversed by 180 degrees rotation of the magnetic field. The origin of the nonreciprocity is ascribed to interference of shear-type and longitudinal-type magnetoelastic couplings.

引用

页数：5

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