Spin Wave Resonance Frequency in the Bilayer Ferromagnetic Film

Zhang, Shuhui; Rong, Jianhong; Wang, Huan; Wang, Dong; Zhang, Lei

doi:10.1007/s10948-017-4357-1

Cited by 6 publications

(2 citation statements)

References 28 publications

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“…In recent years, the effect of bulk uniaxial anisotropy on the SWR frequency in a magnetic film with a simple cubic structure employing the linear spin wave approximation and Green's function method has been demonstrated by Qiu [24][25][26]. Subsequently, the impacts of the surface anisotropy field, interlayer coupling interaction and next-neighbor interaction were also further investigated by our group [27][28][29][30][31]. In addition, the existence and importance of higher-order spin coupling have been confirmed by many researchers [32][33][34][35][36].…”

Section: Introductionmentioning

confidence: 99%

Spin wave resonance frequency in ferromagnetic thin film with the biquadratic exchange interaction

Zhang,

Rong,

Wang

et al. 2023

Phys. Scr.

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Spin wave resonance (SWR) frequency in ferromagnetic thin film with the biquadratic exchange interaction, interlayer exchange coupling, film thickness, surface anisotropy field, and the external magnetic field has been investigated by using the linear spin-wave approximation and Green’s function techniques. In comparison to previous studies without considering the biquadratic exchange interaction, the SWR frequency behaviors of the energetically mid-higher modes were found to be highly sensitive to biquadratic exchange interaction. SWR frequencies of all modes are linearly proportional to external magnetic field. However, the SWR frequency has nonlinear dependence on the interlayer exchange coupling and surface anisotropy field. Moreover, the biquadratic exchange interaction enabled a considerable improvement in the effects of surface anisotropy field, interlayer exchange coupling, and external magnetic field on SWR frequency. Our results also reveal that a decrease in the SWR frequency of the corresponding mid-lower modes as the thickness of film is increased while the almost the same frequency gap between the energetically highest mode and lowest mode is obtained for the thicker film. These results could help improve the understanding of magnetic properties and promote magnetic materials applications in spintronic devices.

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Section: Introductionmentioning

confidence: 99%

Spin wave resonance frequency in ferromagnetic thin film with the biquadratic exchange interaction

Zhang,

Rong,

Wang

et al. 2023

Phys. Scr.

Self Cite

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“…In our previous works [27][28][29], we have investigated the dependence of spin-wave resonance frequency on the surface anisotropy and the interlayer exchange coupling by using the linear spin-wave approximation and Green's function method. The interlayer exchange coupling is more important for the higher energy modes.…”

Section: Introductionmentioning

confidence: 99%

Stress Anisotropy Dependent Ferromagnetic Resonance Frequency in Ferromagnetic/Antiferromagnetic Bilayers

et al. 2019

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The effect of stress anisotropy on ferromagnetic resonance frequency is investigated in ferromagnetic/antiferromagnetic bilayers with exchange anisotropy and uniaxial magnetocrystalline anisotropy. The intensity and the direction of applied magnetic field dependence of resonant frequencies are studied for different stress anisotropies. It is shown that resonant frequency can be tunable by the intensity and the direction of the stress anisotropy. Moreover, the easy axis and hard axis can be changed significantly by taking into account stress anisotropy field and exchange anisotropy field. The jump phenomenon in the angular dependence of stress anisotropy has been explained by analyzing the magnetization reversal processes.

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