HYSTERESIS AND 360-DEGREES DOMAIN-WALL STRUCTURES IN ANTIFERROMAGNETICALLY COUPLED MULTILAYERS WITH LINEAR DEFECTS

Authors
BERKOV DV GORN NL ANDRA W MATTHEIS R SCHMIDT S
Citation
Dv. Berkov et al., HYSTERESIS AND 360-DEGREES DOMAIN-WALL STRUCTURES IN ANTIFERROMAGNETICALLY COUPLED MULTILAYERS WITH LINEAR DEFECTS, Physica status solidi. a, Applied research, 158(1), 1996, pp. 247-258
Citations number
15
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica status solidi. a, Applied research → ACNP
ISSN journal
00318965
Volume
158
Issue
1
Year of publication
1996
Pages
247 - 258
Database
ISI
SICI code
0031-8965(1996)158:1<247:HA3DSI>2.0.ZU;2-Z
Abstract
The influence of linear defects on both the magnetization curve M(H) a nd the magnetoresistance R(H) of antiferromagnetically (AF) coupled Co /Cu multilayers is studied by numerical simulations. In agreement with the behaviour observed experimentally we find irreversibility for a w ide range of external fields. Additionally the simulations predict the appearance of magnetization structures similar to 360 degrees domain walls. The field range of their existence is calculated as a function of the AF coupling strength for two typical defect configurations.