Alternating magnetic field assisted magnetization reversal in ferromagnetic antidot

Hao Ting Huang, Tzong Rong Ger, Chen Yu Huang, Kuei Tien Liao, Pei Jen Wang, Jun Yang Lai, Jiann Yeu Chen, Mei Feng Lai

研究成果: Article同行評審

1 引文 斯高帕斯(Scopus)

摘要

Although the effects of high-frequency electromagnetic waves on magnetization reversal have been extensively studied, the influence of a low-frequency ac field on magnetization reversal has seldom been examined. In this study, we measured the magnetoresistance and examined the magnetic switching process of Permalloy antidot thin films under an alternating magnetic field with a frequency of 25 kHz. When no alternating magnetic field was present, the transitional field of the antidot thin films decreased as the angle of the direct magnetic field increased. When an alternating magnetic field was present, the transitional field exhibited the same trend. We compared the magnetization process of the antidot thin films with and without the alternating magnetic field and determined that the alternating field can facilitate the transition of magnetization, specifically, by lowering the transitional field with the highest variation rate (33.73%).

原文English
文章編號17B906
期刊Journal of Applied Physics
115
發行號17
DOIs
出版狀態Published - 2014 五月 7

All Science Journal Classification (ASJC) codes

  • 物理與天文學 (全部)

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