Room-temperature coercivity enhancement in mechanically alloyed antiferromagnetic-ferromagnetic powders
Sort Viñas, Jordi (Universitat Autònoma de Barcelona. Departament de Física)
Nogués, Josep (Universitat Autònoma de Barcelona. Departament de Física)
Amils Capdevila, Xavier (Universitat Autònoma de Barcelona. Departament de Física)
Suriñach, Santiago (Suriñach Cornet) (Universitat Autònoma de Barcelona. Departament de Física)
Muñoz Domínguez, Juan Santiago (Universitat Autònoma de Barcelona. Departament de Física)
Baró, M. D.. (Universitat Autònoma de Barcelona. Departament de Física)

Date:	1999
Abstract:	The coercivity,HC, and squareness of Co powders have been enhanced at room temperature by mechanically alloying them with antiferromagneticpowders with Néel temperature, TN, above room temperature. The enhancement is maximum after field annealing above TN. The existence of loop shifts and the dependence of HC on the annealing and measuring temperatures indicate that exchange bias effects are responsible for this behavior.
Note:	This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
Rights:	Tots els drets reservats.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Powders ; Annealing ; Antiferromagnetism ; Coercive force ; Alloys ; Exchange interactions ; Temperature measurement
Published in:	Applied physics letters, Vol. 75, Issue 20 (November 1999) , p. 3177-3179, ISSN 1077-3118

DOI: 10.1063/1.125269

4 p, 289.5 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 > Research articles
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