COERCIVITY AND DOMAIN-WALL PINNING IN NONUNIFORM LOCAL MAGNETIC-FIELDS

Authors
PUST L BERTOTTI G TOMAS I VERTESY G
Citation
L. Pust et al., COERCIVITY AND DOMAIN-WALL PINNING IN NONUNIFORM LOCAL MAGNETIC-FIELDS, Journal of magnetism and magnetic materials, 158, 1996, pp. 355-356
Citations number
6
Categorie Soggetti
Material Science","Physics, Condensed Matter
Journal title
Journal of magnetism and magnetic materials → ACNP
ISSN journal
03048853
Volume
158
Year of publication
1996
Pages
355 - 356
Database
ISI
SICI code
0304-8853(1996)158:<355:CADPIN>2.0.ZU;2-Z
Abstract
The domain wall (DW) coercive field, H-cw, can be considerably reduced if DWs are in a high local magnetic field gradient, G. In experiments G was varied between 10(9) and 10(10) A/m(2) by changing the size of domains in magnetic garnet films, which reduced H-cw by factors of 4-9 . These data were compared with a model calculation of H-cw(G) due to hysteresis losses of a DW moving in a stochastic pinning field profile .