Strong coupling of magnetization dynamics of two antiferromagnetic layers by phonons

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Shirdel Havar Majid; Zare Babak

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Journal Paper

Paper Information

Journal: Iranian Journal of Physics Research Year:2023 | Volume:23 | Issue:1( پیاپی 91) Page(s): 79-84

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Information Journal Paper

Title

Strong coupling of magnetization dynamics of two antiferromagnetic layers by phonons

Author(s)

Shirdel Havar Majid | Zare Babak | Issue Writer Certificate

Keywords

antiferromagnetQ4

magnetoelastic interactionQ4

magnon-phonon couplingQ4

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.

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