Chinese Journal of Computational Physics ›› 2024, Vol. 41 ›› Issue (2): 232-238.DOI: 10.19596/j.cnki.1001-246x.8698

Previous Articles     Next Articles

Effect of Thickness of Stacked Co Nanoring Arrays on Magnetic Properties

Qiannan HUANG1(), Yujie HE1, Chunlong FAN1, Changlin WEN1, Yuchen XUE1, Shuiyuan CHEN1,2, Zhigao HUANG1,2, Qingying YE1,2,*()   

  1. 1. College of Physics and Energy, Fujian Normal University, Fuzhou, Fujian 350117, China
    2. Fujian Provincial Collaborative Innovation Central for Optoelectronic Semiconductors and Efficient Devices, Xiamen, Fujian 361005, China
  • Received:2023-02-07 Online:2024-03-25 Published:2024-04-03
  • Contact: Qingying YE

Abstract:

Based on the Monte Carlo (MC) method and the fast Fourier transform micromagnetism (FFTM) method, the magnetic dynamic properties of the stacked Co nanoring arrays with different thickness are simulated. It is found that the hysteresis loops of Co nanorings with different thickness have the bistable states, and the formation and stability of the "vortex state" are significantly related to the thickness. Further studies show that the thickness of the stacked Co nanoring arrays has a great influence on the external magnetic field required for the system to reach saturation. The step width of the hysteresis loop ΔHfc is also related to the thickness. The simulation results are close to the experimental facts.

Key words: Monte Carlo method, fast Fourier transform micromagnetism method, the stacked Co nanoring arrays, thickness, magnetic properties

CLC Number: