Strong coupling of magnetization dynamics of two antiferromagnetic layers by phonons

Shirdel-Havar, Majid; Zare, Babak

doi:10.47176/ijpr.23.1.21617

Strong coupling of magnetization dynamics of two antiferromagnetic layers by phonons

Document Type : Original Article

Authors

Majid Shirdel-Havar

Babak Zare

Department of Physics, Iran University of Science and Technology, Tehran, Iran

https://doi.org/10.47176/ijpr.23.1.21617

Abstract

Strong and long-range coupling of the magnetization dynamics of the two antiferromagnetic layers mediated by the phonons transferred through a nonmagnetic insulator has been investigated. The magnetization dynamics in one of the antiferromagnetic layers via a magnetoelastic interaction leads to the excitation of phonons and their pumping to the nonmagnetic layer. The transfer of phonons, which carry angular momentum, through a nonmagnetic insulator from one antiferromagnetic layer to another, leads to an interference pattern in the absorption spectrum, which represents the coupling of magnetization dynamics of two layers.

Keywords

antiferromagnet

magnetoelastic interaction

magnon-phonon coupling

Subjects

Condensed Matter Physics

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