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4 p, 287.5 KB 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, B. (Centre National de la Recherche Scientifique (França)) ; Nogués, Josep (Universitat Autònoma de Barcelona. Departament de Física) ; American Physical Society
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. [...]
2005 - 10.1103/PhysRevLett.95.067201
Physical review letters, Vol. 95, Issue 6 (August 2005) , p. 67201  

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