Mechanism of Blocking Temperature Difference for Parallel and Perpendicular Exchange Biases in FePt/FeMn Multilayers

Author

Phuoc, Nguyen N. ; Suzuki, Takao

Author_Institution

Inf. Storage Mater. Lab., Toyota Technol. Inst., Nagoya

Volume

43

Issue

2

fYear

2007

Firstpage

897

Lastpage

899

Abstract

A systematic investigation of parallel and perpendicular exchange biases in FePt/FeMn multilayers is performed. The blocking temperature of the parallel exchange bias is higher than that of the perpendicular one. An analysis based on the modified Malozemoff model with the assumption of spin canting at the interface is carried out to explain this discrepancy

Keywords

canted spin arrangements; exchange interactions (electron); iron alloys; magnetic multilayers; manganese alloys; perpendicular magnetic anisotropy; platinum alloys; FePt-FeMn; Malozemoff model; blocking temperature; interface spin canting; multilayers; parallel exchange bias; perpendicular exchange bias; perpendicular magnetic anisotropy; Anisotropic magnetoresistance; Antiferromagnetic materials; Magnetic field measurement; Magnetic films; Magnetic multilayers; Material storage; Nonhomogeneous media; Perpendicular magnetic anisotropy; Temperature; X-ray scattering; Blocking temperature; perpendicular exchange bias; perpendicular magnetic anisotropy; unidirectional anisotropy;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2006.888498

Filename

4069061