Simultaneous in-plane and out-of-plane exchange bias using a single antiferromagnetic layer resolved by x-ray magnetic circular dichroism
Nogués, Josep (Institut Català de Nanociència i Nanotecnologia)
Stepanow, S. (Centre d'Investigació en Nanociència i Nanotecnologia)
Sort Viñas, Jordi (Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT))
Dieny, Bernard (Universitat Autònoma de Barcelona. Departament de Física)
Nolting, F. (Paul Scherrer Institut (Suïssa))
Gambardella, Pietro (Centre d'Investigació en Nanociència i Nanotecnologia)
Institució Catalana de Recerca i Estudis Avançats
American Physical Society

Date:	2009
Abstract:	We present a study of exchange bias in ferromagnet/antiferromagnet/ferromagnet (FM/AFM/FM) trilayers, with in-plane and out-plane easy axes. Using element-specific x-ray magnetic circular dichroism, we demonstrate that simultaneous in-plane and out-of-plane exchange bias can be induced using a single antiferromagnet and zero field cooling, whereas field cooling only induces exchange bias to the layer with easy axis parallel to the cooling field. Our results further evidence the presence of pinned uncompensated moments in both the FM and AFM layers, implying that the AFM layer is capable of supporting uncompensated spins in two orthogonal directions at the same time.
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Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Antiferromagnetism ; Ferromagnetism ; Exchange interactions ; Remanence ; Multilayers ; Anisotropy ; Magnetic hysteresis ; Interface structure ; Magnetic circular dichroism spectroscopy ; Superconducting quantum interference devices
Published in:	Applied physics letters, Vol. 95, Issue 15 (October 2009) , p. 152515/1-152515/3, ISSN 1077-3118

DOI: 10.1063/1.3232213

4 p, 371.3 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)
Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Catalan Institute of Nanoscience and Nanotechnology (ICN2)
Articles > Research articles
Articles > Published articles