Solutions to micromagnetic standard problem No. 2 using square grids

Citation
L. Lopez-diaz et al., Solutions to micromagnetic standard problem No. 2 using square grids, J APPL PHYS, 85(8), 1999, pp. 5813-5815
Citations number
5
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF APPLIED PHYSICS
ISSN journal
00218979 → ACNP
Volume
85
Issue
8
Year of publication
1999
Part
2B
Pages
5813 - 5815
Database
ISI
SICI code
0021-8979(19990415)85:8<5813:STMSPN>2.0.ZU;2-H
Abstract
Solutions to micromagnetic standard problem No. 2 are presented in this art icle and the main features of the computational techniques used are discuss ed. Values of coercivity and remanence have been obtained in the range 0.8< d/l(ex)<20.0. A continuous transition from uniform to nonuniform rotation i s observed leading to a steady decrease in the coercivity as the ratio betw een the scaled geometry and the exchange length is increased. A sharp trans ition in the remanent states is found at d/l(ex) = 9.0. The nonuniform reve rsal mechanism is discussed and is found to consist on transitions between in-plane S-shaped patterns. The results are interpreted qualitatively. (C) 1999 American Institute of Physics. [S0021-8979(99)41008-4].