Results overview: Found 6 records in 0.01 seconds.
Articles, 6 records found
Articles 6 records found  
1.
8 p, 5.7 MB A new reversal mode in exchange coupled antiferromagnetic/ferromagnetic disks : Distorted viscous vortex / Gilbert, Dustin A. (University of California. Physics Department) ; Ye, Li (University of California. Physics Department) ; Varea Espelt, Aïda (Universitat de Barcelona) ; Agramunt Puig, Sebastià (Universitat Autònoma de Barcelona. Departament de Física) ; Valle Benedí, Nuria del (Universitat Autònoma de Barcelona. Departament de Física) ; Navau Ros, Carles (Universitat Autònoma de Barcelona. Departament de Física) ; López-Barbera, José Francisco (Universitat Autònoma de Barcelona. Departament de Física) ; Buchanan, K. S. (Colorado State University. Department of Physics) ; Hoffmann, Axel (Argonne National Laboratory) ; Sánchez Moreno, Àlvar (Universitat Autònoma de Barcelona. Departament de Física) ; Sort Viñas, Jordi (Universitat Autònoma de Barcelona. Departament de Física) ; Liu, Kai (University of California. Physics Department) ; Nogués, Josep (Institut Català de Nanociència i Nanotecnologia)
Magnetic vortices have generated intense interest in recent years due to their unique reversal mechanisms, fascinating topological properties, and exciting potential applications. In addition, the exchange coupling of magnetic vortices to antiferromagnets has also been shown to lead to a range of novel phenomena and functionalities. [...]
2015 - 10.1039/c5nr01856k
Nanoscale, Vol. 7, Issue 21 (June 2015) , p. 9878-9885  
2.
6 p, 514.5 KB Tailoring the magnetization reversal of elliptical dots using exchange bias (invited) / Sort Viñas, Jordi (Institució Catalana de Recerca i Estudis Avançats) ; Buchanan, K. S. (Argonne National Laboratory. Materials Science Division) ; Pearson, J. E. (Argonne National Laboratory. Materials Science Division) ; Hoffmann, Axel (Argonne National Laboratory. Materials Science Division) ; Menéndez Dalmau, Enric (Universitat Autònoma de Barcelona. Departament de Física) ; Salazar Álvarez, Germán (Institut Català de Nanociència i Nanotecnologia) ; Baró, M. D.. (Universitat Autònoma de Barcelona. Departament de Física) ; Miron, M. ((SPINTEC (Spin Electronics Research))) ; Rodmacq, B. ((SPINTEC (Spin Electronics Research))) ; Dieny, B. ((SPINTEC (Spin Electronics Research))) ; Nogués, Josep (Institut Català de Nanociència i Nanotecnologia)
Exchange bias effects have been studied in elliptical dots composed of ferromagnetic Ni80Fe20-antiferromagnetic Ir20Mn80 bilayers. The magnetization reversal mechanisms and magnetic configurations have been investigated by magneto-optic Kerr effect and magnetic force microscopy. [...]
2008 - 10.1063/1.2840467
Journal of applied physics, Vol. 103, Núm. 7 (April 2008) , p. 7C109/1-7C109/5  
3.
4 p, 452.8 KB Enhanced exchange bias effects in a nanopatterned system consisting of two perpendicularly coupled ferromagnets / Bollero, A. (SPINTEC (Spin Electronics Research)) ; Dieny, B. (SPINTEC (Spin Electronics Research)) ; Sort Viñas, Jordi (Institució Catalana de Recerca i Estudis Avançats) ; Buchanan, K. S. (Argonne National Laboratory. Materials Science Division) ; Landis, S. (Commissariat à l'Énergie Atomique et aux Énergies Alternatives (França)) ; Nogués, Josep (Institut Català de Nanociència i Nanotecnologia) ; American Physical Society
The effect of patterning on the shift of the hysteresis loop HE and coercivityHC in a system composed of two perpendicularly exchange-coupled ferromagnets (NiFe sputtered onto a [Pt/Co] multilayer) is investigated in long stripes and square dots. [...]
2008 - 10.1063/1.2833124
Applied physics letters, Vol. 92, Issue 2 (January 2008) , p. 022508/1-022508/3  
4.
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  
5.
7 p, 2.5 MB Tuneable magnetic patterning of paramagnetic Fe60Al40 (at. %) by consecutive ion irradiation through pre-lithographed shadow masks / Varea Espelt, Aïda (Universitat Autònoma de Barcelona. Departament de Física) ; Suriñach, Santiago (Suriñach Cornet) (Universitat Autònoma de Barcelona. Departament de Física) ; Menéndez Dalmau, Enric (Universitat Autònoma de Barcelona. Departament de Física) ; Montserrat, J. (Centro Nacional de Microelectrónica) ; Lora-Tamayo d'Ocón, Emilio (Centro Nacional de Microelectrónica) ; Weber, A. (Paul Scherrer Institut (Suïssa)) ; Heyderman, L. J. (Paul Scherrer Institut (Suïssa)) ; Deevi, S. C. (Philip Morris. Research Center) ; Rao, K. V. (Kungl. Tekniska högskolann. Materialfysik) ; Baró, M. D.. (Universitat Autònoma de Barcelona. Departament de Física) ; Buchanan, K. S. (Colorado State University. Department of Physics) ; Nogués, Josep (Institut Català de Nanociència i Nanotecnologia) ; Sort Viñas, Jordi (Universitat Autònoma de Barcelona. Departament de Física)
Arrays of ferromagnetic circular dots (with diameters ranging from 225 to 420 nm) have been prepared at the surface of atomically ordered paramagnetic Fe60Al40 (at. %) sheets by means of ion irradiation through prelithographed poly(methyl methacrylate) (PMMA) masks. [...]
2011 - 10.1063/1.3590158
Journal of applied physics, Vol. 109, Núm. 9 (May 2011) , p. 093918/1-093918/7  
6.
4 p, 1.2 MB Imprinting vortices into antiferromagnets / Sort Viñas, Jordi (Universitat Autònoma de Barcelona. Departament de Física) ; Buchanan, K. S. (Argonne National Laboratory. Materials Science Division) ; Novosad, V. (Argonne National Laboratory. Materials Science Division) ; Hoffmann, Axel (Argonne National Laboratory. Materials Science Division) ; Salazar Álvarez, Germán (Universitat Autònoma de Barcelona. Departament de Física) ; Bollero, A. (SPINTEC (Spin Electronics Research)) ; Baró, M. D.. (Universitat Autònoma de Barcelona. Departament de Física) ; Dieny, B. (SPINTEC (Spin Electronics Research)) ; Nogués, Josep (Universitat Autònoma de Barcelona. Departament de Física) ; American Physical Society
The effect of imprinting symmetric and displaced vortex structures into an antiferromagnetic material is investigated in micron-sized disks consisting of exchange coupled ferromagnetic-antiferromagnetic bilayers. [...]
2006 - 10.1103/PhysRevLett.97.067201
Physical review letters, Vol. 97, Issue 6 (August 2006) , p. 1-4  

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6 Buchanan, K. S.
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