1 Inner Mongolia Key Laboratory of Nanoscience and Nanotechnology and School of Physical Science and Technology, Inner Mongolia University, Hohhot 010021, China; 2 College of Science, Inner Mongolia Agricultural University, Hohhot 010018, China; 3 College of Physics and Electronic Information, Inner Mongolia Normal University, Hohhot 010022, Chin
Abstract 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.
Fund: Project supported by the Natural Science Foundation of Inner Mongolia of China (Grant No. 2019MS01021), the Research Program of Science and Technology at Universities of Inner Mongolia Autonomous Region, China (Grant No. NJZY21454), and the National Natural Science Foundation of China (Theoretical Physics) (Grant No. 11947414).
Corresponding Authors:
Jianhong Rong
E-mail: jhrong502@163.com
Cite this article:
Jieyu Zhou(周婕妤), Jianhong Rong(荣建红), Huan Wang(王焕), Guohong Yun(云国宏), Yanan Wang(王娅男), and Shufei Zhang(张舒飞) Theoretical investigation of ferromagnetic resonance in a ferromagnetic thin film with external stress anisotropy 2022 Chin. Phys. B 31 017601
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