Effects of an oscillating field on magnetic domain patterns: Numerical and theoretical studies on the concentric-ring patterns surrounding a strong defect
Statistical Mechanics
2009-07-17 v2
Abstract
Oscillating fields can make domain patterns change into various types of structures. Numerical simulations show that concentric-ring domain patterns centered at a strong defect are observed under a rapidly oscillating field in some cases. The concentric-ring pattern appears near the threshold of spatially-uniform patterns in high-frequency cases. The threshold is theoretically estimated and the theoretical threshold is in good agreement with numerical one in a high-frequency region. The theoretical analysis gives also good estimations of several characteristics of domain patterns for high-frequencies.
Keywords
Cite
@article{arxiv.0808.3290,
title = {Effects of an oscillating field on magnetic domain patterns: Numerical and theoretical studies on the concentric-ring patterns surrounding a strong defect},
author = {Kazue Kudo},
journal= {arXiv preprint arXiv:0808.3290},
year = {2009}
}
Comments
7 pages, 3 figures