Title :
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
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;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2006.888498
