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Magnetization reversal, asymmetry, and role of uncompensated spins in perpendicular exchange coupled systems
Camarero, J. (Universidad Autónoma de Madrid. Departamento de Física de la Materia Condensada)
Miguel, J. (University of Amsterdam. Van der Waals-Zeeman Institute)
Goedkoop, J. B. (University of Amsterdam. Van der Waals-Zeeman Institute)
Vogel, J. (Laboratoire Louis Neel (Grenoble, França))
Romanens, F. (Laboratoire Louis Neel (Grenoble, França))
Pizzini, S. (Laboratoire Louis Neel (Grenoble, França))
Garcia, F. (SPINTEC (Spin Electronics Research))
Sort Viñas, Jordi (SPINTEC (Spin Electronics Research))
Dieny, B. (SPINTEC (Spin Electronics Research))
Brookes, N. B. (European Synchrotron Radiation Facility)
American Physical Society

Fecha: 2006
Resumen: Soft x-ray resonant magnetic scattering has been used to investigate the element-selective microscopic magnetization reversal behavior of room temperature perpendicular exchange coupled ferromagnetic∕antiferromagnetic (F∕AF) systems and to study the role of the interfacial coupling strength on it. Different nucleation processes and domain size distributions along the decreasing and increasing branches of the reversal have been found. The size of the magnetic domains during reversal depends on both the F anisotropy and F∕AF coupling strength, decreasing when one of them increases. Evidence of the exchange bias(coercivity enhancement) being induced by pinned (unpinned) uncompensated AF interfacial spins is also shown.
Nota: This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
Derechos: Tots els drets reservats.
Lengua: Anglès
Documento: article ; recerca ; publishedVersion
Materia: Magnetization reversals ; Nucleation ; Exchange interactions ; Thin film nucleation ; Coercive force ; Magnetic hysteresis ; F region ; Interface structure ; Magnetic anisotropy ; Magnetic films
Publicado en: Applied physics letters, Vol. 89, Issue 23 (December2006) , p. 232507/1-232507/3, ISSN 1077-3118

DOI: 10.1063/1.2402882

4 p, 665.4 KB

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Documentos de investigación > Documentos de los grupos de investigación de la UAB > Centros y grupos de investigación (producción científica) > Ciencias > Grupo de nanoingeniería de materiales, nanomagnetismo y nanomecánica (Gnm3)
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 Registro creado el 2014-02-21, última modificación el 2020-08-22

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