Influence of asymmetry of Kerr signal on vortex configuration in submicro-scaled permalloy disc array

Chao Hsien Huang, Kuo Ming Wu, Jong Ching Wu, Lance Horng

研究成果: Article同行評審

1 引文 斯高帕斯(Scopus)

摘要

A self-alignment method for local coating fabrication in submicro-scaled discs is described. The adjustable area of the capping layer on the magnetic disc can create asymmetric Kerr signals for vortex configuration and provide different asymmetries of the Kerr signal. Nondegenerate Kerr signals of vortex chirality in 300 nm diameter and 40 nm thick Ni80Fe20 discs locally capped with 25 nm thickness Al were investigated. Various capping area ratios ranging from 0 to 0.5 were fabricated to observe the influence of Kerr signal asymmetry. This modifiable asymmetric Kerr signal advances the time-resolved measurements of vortex chirality dynamics.

原文English
文章編號245001
期刊Journal of Physics D: Applied Physics
46
發行號24
DOIs
出版狀態Published - 2013 六月 19

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Acoustics and Ultrasonics
  • Surfaces, Coatings and Films

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