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Micromagnetic simulation of the dynamic susceptibility spectra of antidot array films with two sublattices
Wang Qi 1 #,Zhang Huaiwu 2,Jin Lichuan 2,Zhong Zhiyong 2 *
1.State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, ChengDu 610054
2.State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China
*Correspondence author
#Submitted by
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Funding: Ph.D. Programs Foundation of Ministry of Education of China (No.No.20100185110024)
Opened online: 9 April 2012
Accepted by: none
Citation: Wang Qi,Zhang Huaiwu,Jin Lichuan.Micromagnetic simulation of the dynamic susceptibility spectra of antidot array films with two sublattices[OL]. [ 9 April 2012] http://en.paper.edu.cn/en_releasepaper/content/4473917
 
 
The dynamic susceptibility spectra of antidot array films with two sublattices were investigated using the three-dimensional object oriented micormagnetic framework (OOMMF) code with two-dimensional periodic boundary condition (2DPBC) extension. Due to the nonuniformity of the static magnetization patterns, two main resonance peaks are found in our investigation when the diameter ratio (D1:D2) varies from 5:5 to 5:3. The higher peak is around 12GHz and can be identified with the uniform precession of magnetization of region A. The lower one, located around 4GHz, is owing to the nonuniform precession of magnetization within the confined area B. A new peak appears when diameter ratio is 5:1 and 5:0. The new peak can be attributed to the change of the local effective field caused by the decrease of inner diameter of D2.
Keywords:antidot array; dynamic susceptibility; micromagnetic simulation
 
 
 

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