TITLE:
Micromagnetic Investigation of Microwave Permeability of Magnetic Artificial Spin Ice
AUTHORS:
Fusheng Ma, Yuping Wu, Baoyu Zong
KEYWORDS:
Microwave Permeability, Artificial Spin Ice, Micromagnetic Simulation, Magnetization Dynamics
JOURNAL NAME:
Materials Sciences and Applications,
Vol.5 No.14,
December
3,
2014
ABSTRACT: The complex permeability of the artificial spin ice array at different magnetic states is calculated using the micromagnetic simulation method. It is observed that the permeability spectra are dependent on the magnetization distributions of the array. The dependence of the permeability spectrum on the applied magnetic field strength and on the spacing gap between the neighboring elements is also investigated. Depending on the initial magnetization saturating direction, the permeability spectrum exhibits different sensitivity to the strength of the external applied magnetic field and to the spacing distance between the comprising elements of the artificial spin ice array.