ASYMMETRIC DOMAIN-WALL-PINNING IN ANTIFERROMAGNETIC FeMn/FERROMAGNETIC FeNi COUPLED FILMS

H. Fujimori; X. Lin; H. Morita

doi:doi:10.1051/jphyscol:19888873

Numéro		J. Phys. Colloques Volume 49, Numéro C8, Décembre 1988 Proceedings of the International Conference on Magnetism


Page(s)		C8-1931 - C8-1932
DOI		https://doi.org/10.1051/jphyscol:19888873

Proceedings of the International Conference on Magnetism

J. Phys. Colloques 49 (1988) C8-1931-C8-1932
DOI: 10.1051/jphyscol:19888873

ASYMMETRIC DOMAIN-WALL-PINNING IN ANTIFERROMAGNETIC FeMn/FERROMAGNETIC FeNi COUPLED FILMS

H. Fujimori, X. Lin et H. Morita

Institute for Materials Research, Tohoku University, Sendai 980, Japan

Abstract
The characteristics of asymmetric hysteresis loop of magnetization for antiferromagnetic fcc FeMn/ferromagnetic fcc NiFe coupled films was investigated. The loop shift (H_e) and coercivity (H_c) were inversely proportional to NiFe layer thickness. The H_e was changed by FeMn layer composition and field-cooling temperature, being associated with the Néel point of the fcc Fe-Mn alloys. It was considered that the asymmetric loop was attributed to the domain wall motion in NiFe layer against the unidirectional pinning forces acting at the interface region.