Magnetization reversal in nanostructured permalloy rings

Mei Feng Lai, Ching Ray Chang, J. C. Wu, Zung Hang Wei, J. H. Kuo, Jun Yang Lai

Research output: Contribution to journalConference article

14 Citations (Scopus)

Abstract

Three different stable magnetization configurations of soft-type nanostructured permalloy rings are investigated in detail by micromagnetic simulation. During the reversal process, the abrupt change of the hysteresis loop corresponds to the evolution of these states. Beside the quasiuniform and circular states, we find a new pair-vortices state. We compare the magnetic pole density distributions transformed from the simulation patterns with the magnetic force microscopic (MFM) images and find very good agreement between them.

Original languageEnglish
Pages (from-to)2550-2552
Number of pages3
JournalIEEE Transactions on Magnetics
Volume38
Issue number5 I
DOIs
Publication statusPublished - 2002 Sep 1
Event2002 International Magnetics Conference (Intermag 2002) - Amsterdam, Netherlands
Duration: 2002 Apr 282002 May 2

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Cite this

Lai, M. F., Chang, C. R., Wu, J. C., Wei, Z. H., Kuo, J. H., & Lai, J. Y. (2002). Magnetization reversal in nanostructured permalloy rings. IEEE Transactions on Magnetics, 38(5 I), 2550-2552. https://doi.org/10.1109/TMAG.2002.801931