Ferromagnetic layer thickness dependence of the misalignment between anisotropy axes in Co/IrMn bilayers

Huang, Yi; Wang, Xiangqian; Wu, Huiliang; Li, Xiaolei; Feng, Hongmei; Liu, Yueyue; Liu, Wenshu; Ma, Yu; Wang, Jianbo

doi:10.1016/j.jmmm.2019.165756

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2022

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“…However, in these studies, most of the investigations only take into account interlayer coupling and exchange bias. [17][18][19][20][21][22][23] Reports on the theoretical analysis of stress anisotropy in ferromagnetic thin film are scarcer. In fact, the controllable stress plays an important role in the FMR, which can change the properties of magnetic materials.…”

Section: Introductionmentioning

confidence: 99%

Theoretical investigation of ferromagnetic resonance in a ferromagnetic thin film with external stress anisotropy

Zhou¹,

Rong²,

Wang³

et al. 2022

Chinese Phys. B

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We use the ferromagnetic resonance (FMR) method to study the properties of ferromagnetic thin film, in which external stress anisotropy, fourfold anisotropy and uniaxial anisotropy are considered. The analytical expressions of FMR frequency, linewidth and the imaginary part of magnetic susceptibility are obtained. Our results reveal that the FMR frequency and the imaginary part of magnetic susceptibility are distinctly enhanced, and the frequency linewidth or field linewidth are broadened due to a strong external stress anisotropy field. The hard-axis and easy-axis components of magnetization can be tuned significantly by controlling the intensity and direction of stress and the in-plane uniaxial anisotropy field.

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