Per citar aquest document: http://ddd.uab.cat/record/116049
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. (LETI/D2NT, CEA (Grenoble, França))
Nogués i Sanmiquel, Josep (Institució Catalana de Recerca i Estudis Avançats)
American Physical Society

Data: 2008
Resum: 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. Setting the exchange bias coupling along the stripes results in a threefold increase of HE compared to the continuous films. HC increases dramatically when the coupling is set perpendicular to the stripes and also in the dots. Magnetic force microscopy studies and micromagnetic simulations suggest that differences in the number and orientation of the magnetic domains can account for the observed effects.
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Drets: Tots els drets reservats.
Llengua: Anglès
Document: article ; recerca ; publishedVersion
Matèria: Magnetic force microscopy ; Domain walls ; Nickel ; Remanence ; Magnetic moments ; Nanostructures ; Coercive force ; Exchange interactions ; Micromagnetic simulations ; Nanomagnetism
Publicat a: Applied Physics Letters, Vol. 92, Issue 2 (January 2008) , p. 022508/1-022508/3, ISSN 1077-3118

DOI: 10.1063/1.2833124


4 p, 452.8 KB

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Documents de recerca > Documents dels grups de recerca de la UAB > Centres i grups de recerca (producció científica) > Ciències > Grup de nanoenginyeria de materials, nanomagnetisme i nanomecànica (Gnm3)
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 Registre creat el 2014-02-19, darrera modificació el 2016-06-04



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