Common Reversal Mechanisms and Correlation Between Transient Domain States and Field Sweep Rate in Patterned Permalloy Structures
June W. Lau, M Beleggia, Y Zhu
Complicated domain configurations generated during the magnetization reversal of Permalloy elements patterned in various shapes are the results of a surprisingly few switching mechanisms. By comparing the results from micromagnetic simulations with the experimentally observed switching events using Lorentz microscopy, we found that nucleation and annihilation of vortices and vortex/anti-vortex pairs, and the propagation of Neel and cross-tie walls are the principle mechanisms for magnetization reversal in Permalloy elements with dimensions favorable to domain formation.
, Beleggia, M.
and Zhu, Y.
Common Reversal Mechanisms and Correlation Between Transient Domain States and Field Sweep Rate in Patterned Permalloy Structures, Journal of Applied Physics
(Accessed December 9, 2023)