Issue
J. Phys. Colloques
Volume 49, Number C8, Décembre 1988
Proceedings of the International Conference on Magnetism
Page(s) C8-1813 - C8-1814
DOI https://doi.org/10.1051/jphyscol:19888828
Proceedings of the International Conference on Magnetism

J. Phys. Colloques 49 (1988) C8-1813-C8-1814

DOI: 10.1051/jphyscol:19888828

REVERSAL MODES IN FINE PARTICLES

Ying Dong Yan et Edward Della Torre

Electrical Engineering and Computer Science Department, George Washington University, Washington, DC 20052, U.S.A.


Abstract
A numerical micromagnetic model has been used to analyze equilibrium and reversal modes. For small Cobalt fine particles, the magnetization rotated quasi-coherently ; for intermediate sized particles, the magnetization reversed in a quasi-curling mode ; and for larger particles, the magnetization was multidomain, and columnar switching was observed.