Magnetization reversal in submicron disks : exchange biased vortices
Sort Viñas, Jordi (Universitat Autònoma de Barcelona. Departament de Física)
Hoffmann, Axel (Argonne National Laboratory. Materials Science Division)
Chung, S-H. (Argonne National Laboratory. Materials Science Division)
Buchanan, K. S. (Argonne National Laboratory. Materials Science Division)
Grimsditch, M. (Argonne National Laboratory. Materials Science Division)
Baró, M. D.. (Universitat Autònoma de Barcelona. Departament de Física)
Dieny, Bernard (Centre National de la Recherche Scientifique (França))
Nogués, Josep (Universitat Autònoma de Barcelona. Departament de Física)
American Physical Society

Date:	2005
Abstract:	Submicron, circular, ferromagnetic-antiferromagnetic dots exhibit different magnetization reversal mechanisms depending on the direction of the magnetic applied field. Shifted, constricted hysteresis loops, typical for vortex formation, are observed for fields along the exchange bias direction. However, for fields applied close to perpendicular to the exchange bias direction, magnetization reversal occurs via coherent rotation. Magnetic force microscopy imaging together with micromagnetic simulations are used to further clarify the different magnetic switching behaviors.
Rights:	Aquest material està protegit per drets d'autor i/o drets afins. Podeu utilitzar aquest material en funció del que permet la legislació de drets d'autor i drets afins d'aplicació al vostre cas. Per a d'altres usos heu d'obtenir permís del(s) titular(s) de drets.
Language:	Anglès
Document:	Article ; Versió publicada
Published in:	Physical review letters, Vol. 95, Issue 6 (August 2005) , p. 67201, ISSN 1079-7114

DOI: 10.1103/PhysRevLett.95.067201

4 p, 287.5 KB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Group of Smart Nanoengineered Materials, Nanomechanics and Nanomagnetism (Gnm3)
Articles > Published articles