Domain wall structure and the modified Kondorsky function

Citation
Hy. Deng et Hl. Huang, Domain wall structure and the modified Kondorsky function, CHIN J PHYS, 39(5), 2001, pp. 479-497
Citations number
29
Categorie Soggetti
Physics
Journal title
CHINESE JOURNAL OF PHYSICS
ISSN journal
05779073 → ACNP
Volume
39
Issue
5
Year of publication
2001
Pages
479 - 497
Database
ISI
SICI code
0577-9073(200110)39:5<479:DWSATM>2.0.ZU;2-G
Abstract
Simulated analytic solutions of the dependence of the magnetization angles (theta, phi) inside a domain-wall upon the coordinate normal to a pinned do main wall have been obtained as a function of the field orientation angles and the field strength and the results were used to obtain a new modified K ondorsky function. The modified Kondorsky function shows that our results b etter agree with the experimental data than ever before reported. Furthermo re, the modified Kondorsky function varies sensitively with the transverse coordinate, field strength, quality factor and field angles (theta (H), psi (H)). Appropriately chosen values of these parameters may make the evaluat ion of the Kondorsky function edge closer to the experimental pinning field data, provided we deal with a Bloch wall, or a mixed Bloch-Neel wall, but not a pure Neel wall. Evidently, the domain wall structure has to be taken into account in graphing the pinning field.