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Magneto-optical study of magnetization reversal asymmetry in exchange bias
Tillmanns, A. (Rheinisch-Westfälische Technische Hochschule Aachen. Institut für physikalisches)
Oertker, S. (Rheinisch-Westfälische Technische Hochschule Aachen. Institut für physikalisches)
Beschoten, B. (Rheinisch-Westfälische Technische Hochschule Aachen. Institut für physikalisches)
Güntherodt, G. (Rheinisch-Westfälische Technische Hochschule Aachen. Institut für physikalisches)
Leighton, C. (University of California, San Diego. Department of Physics)
Schuller, Ivan K. (University of California, San Diego. Department of Physics)
Nogués i Sanmiquel, Josep (Universitat Autònoma de Barcelona. Department de Física)
American Physical Society

Date: 2006
Abstract: The asymmetric magnetization reversal in exchange biased Fe/MnF2 involves coherent (Stoner-Wohlfarth) magnetization rotation into an intermediate, stable state perpendicular to the applied field. We provide here the experimentally tested analytical conditions for the unambiguous observation of both longitudinal and transverse magnetization components using the magneto-optical Kerr effect. This provides a fast and powerful probe of coherent magnetization reversal as well as its chirality. Surprisingly, the sign and asymmetry of the transverse magnetization component of exchange biased, low-anisotropy MnF2 and high-anisotropy FeF2 change with the angle between cooling and measurement fields.
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 ; publishedVersion
Subject: Magnetooptic ; Kerr effects ; Polarization ; Magnetization reversals ; Magnetic hysteresis ; Chiral symmetries ; Exchange interactions ; Ferromagnetism ; Magnetic fields ; Magnetization measurement
Published in: Applied physics letters, Vol. 89, Issue 20 (November 2006) , p. 202512, ISSN 1077-3118

DOI: 10.1063/1.2392283


4 p, 394.7 KB

The record appears in these collections:
Research literature > UAB research groups literature > Research Centres and Groups (scientific output) > Experimental sciences > Group of Smart Nanoengineered Materials, Nanomechanics and Nanomagnetism (Gnm3)
Articles > Research articles
Articles > Published articles

 Record created 2014-02-21, last modified 2020-04-25



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