Title :
Exchange bias on rippled substrates ¢?? step induced uniaxial versus unidirectional anisotropy
Author :
Liedke, M. ; Rossbach, S. ; Facsko, S. ; Hillebrands, B. ; Fassbender, J.
Author_Institution :
Forschungszentrum Rossendorf, Dresden
Abstract :
The angular dependence of the magnetization reversal curves reflect a complicated behavior due to the competition between uniaxial and unidirectional anisotropy contributions. Here we present an alternative route to study these phenomena by employing rippled substrates prepared by ion erosion. The magnetization reversal behavior of the F layer and the exchange bias system was then investigated by means of magneto-optic Kerr effect. A complete angular dependency of the magnetization reversal behavior has been investigated in both cases and compared to simulations based on a Stoner-Wohlfarth coherent rotation model.
Keywords :
Kerr magneto-optical effect; exchange interactions (electron); magnetic anisotropy; magnetisation reversal; Stoner-Wohlfarth coherent rotation model; angular dependence; angular dependency; exchange bias; ion erosion; magnetization reversal; magneto-optic Kerr effect; rippled substrates; unidirectional anisotropy; Anisotropic magnetoresistance; Annealing; Antiferromagnetic materials; Argon; Atomic force microscopy; Ion beams; Magnetization reversal; Nanostructures; Physics; Substrates;
Conference_Titel :
Magnetics Conference, 2006. INTERMAG 2006. IEEE International
Conference_Location :
San Diego, CA
Print_ISBN :
1-4244-1479-2
DOI :
10.1109/INTMAG.2006.376302
