中国物理B ›› 2021, Vol. 30 ›› Issue (3): 37502-.doi: 10.1088/1674-1056/abccb4

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  • 收稿日期:2020-08-12 修回日期:2020-11-11 接受日期:2020-11-23 出版日期:2021-02-22 发布日期:2021-03-05

Angular control of multi-mode resonance frequencies in obliquely deposited CoZr thin films with rotatable stripe domains

Chao-Zhong Li(李超众), Chang-Jun Jiang(蒋长军), and Guo-Zhi Chai(柴国志)†   

  1. 1 Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou 730000, China
  • Received:2020-08-12 Revised:2020-11-11 Accepted:2020-11-23 Online:2021-02-22 Published:2021-03-05
  • Contact: †Corresponding author. E-mail: chaigzh@lzu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 51871117 and 51671099), the Program for Changjiang Scholars and Innovative Research Team in University, China (Grant No. IRT-16R35), and the Gansu Provincial Science Foundation for Distinguished Young Scholars, China (Grant No. 20JR10RA649).

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Abstract: We investigate the angular-dependent multi-mode resonance frequencies in CoZr magnetic thin films with a rotatable stripe domain structure. A variable range of multi-mode resonance frequencies from 1.86 GHz to 4.80 GHz is achieved by pre-magnetizing the CoZr films along different azimuth directions, which can be ascribed to the competition between the uniaxial anisotropy caused by the oblique deposition and the rotatable anisotropy induced by the rotatable stripe domain. Furthermore, the regulating range of resonance frequency for the CoZr film can be adjusted by changing the oblique deposition angle. Our results might be beneficial for the applications of magnetic thin films in microwave devices.

Key words: angular control, multi-mode resonance, rotatable stripe domain, non-uniform precession

中图分类号:  (Magnetic properties of monolayers and thin films)

  • 75.70.Ak
75.30.Gw (Magnetic anisotropy) 76.50.+g (Ferromagnetic, antiferromagnetic, and ferrimagnetic resonances; spin-wave resonance) 75.78.Fg (Dynamics of domain structures)