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Asymmetric magnetization reversal in exchange-biased hysteresis loops
Fitzsimmons, M. R. (Los Alamos National Laboratory)
Yashar, P. (Los Alamos National Laboratory)
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. Departament de Física)
Majkrzak, C. F. (National Institute of Standards and Technology (Estats Units d'Amèrica))
Dura, J. (National Institute of Standards and Technology (Estats Units d'Amèrica))
American Physical Society

Date: 2000
Abstract: Polarized neutron reflectometry is used to probe the in-plane projection of the net-magnetization vector M of polycrystalline Fe films exchange coupled to twinned (110) MnF2 or FeF2 antiferromagnetic (AF) layers. The magnetization reversal mechanism depends upon the orientation of the cooling field with respect to the twinned microstructure of the AF, and whether the applied field is increased to (or decreased from) a positive saturating field; i. e. , the magnetization reversal is asymmetric. The reversal of the sample magnetization from one saturated state to the other occurs via either domain wall motion or magnetization rotation on opposite sides of the same hysteresis loop.
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Rights: Tots els drets reservats.
Language: Anglès.
Document: article ; publishedVersion
Published in: Physical review letters, Vol. 84, Issue 17 (April 2000) , p. 3986-3989, ISSN 1079-7114

DOI: 10.1103/PhysRevLett.84.3986


4 p, 78.3 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 > Published articles

 Record created 2014-01-22, last modified 2020-04-25



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