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

doi:10.1088/1674-1056/abccb4

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.

Keywords: angular control multi-mode resonance rotatable stripe domain non-uniform precession

Received: 12 August 2020
Revised: 11 November 2020
Accepted manuscript online: 23 November 2020

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

Fund: 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).

Corresponding Authors: ^†Corresponding author. E-mail: chaigzh@lzu.edu.cn

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Chao-Zhong Li(李超众), Chang-Jun Jiang(蒋长军), and Guo-Zhi Chai(柴国志) Angular control of multi-mode resonance frequencies in obliquely deposited CoZr thin films with rotatable stripe domains 2021 Chin. Phys. B 30 037502

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

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