1. Strain-dependent magnon transport in CoFe2O4/NiO/CoFe2O4 junctions induced by bulk acoustic waves.
- Author
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Ling, Hanbing, Wu, Yao, Ge, Xu, Ye, Zhao, Dong, Tianwen, Miao, Ling, Luo, Wei, Zhang, Yue, and Fu, Qiuyun
- Abstract
A magnon junction consisting of ferromagnetic/antiferromagnetic/ferromagnetic insulators can manipulate the transmission of magnon current through adjusting magnetic moment alignment, offering potential for ultra-low power magnon circuits. This study employs density functional theory calculations and atomic simulations to investigate the strain-dependent modulation of magnon current transport in CoF e 2 O 4 / NiO / CoF e 2 O 4 junctions induced by bulk acoustic waves. Our results demonstrate that strain significantly alters the magnetic anisotropy energy of both NiO and CoF e 2 O 4 , with NiO favoring in-plane magnetic anisotropy under various strains and CoF e 2 O 4 exhibiting a transition from in-plane to perpendicular magnetic anisotropy. Additionally, controlling the magnetic anisotropy energy of NiO and CoF e 2 O 4 allows for the regulation of magnon current transmission, providing a novel approach to optimize magnonic device performance. These findings highlight the potential of strain as a tunable parameter in the design of advanced magnonic devices. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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