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dc.contributor.author
Milano, Julian
dc.contributor.author
Llois, Ana Maria
dc.date.available
2019-03-14T20:11:43Z
dc.date.issued
2001-01
dc.identifier.citation
Milano, Julian; Llois, Ana Maria; From direct to inverse GMR: Introduction of Cr in Fe/Cu superlattices; Elsevier Science; Journal of Magnetism and Magnetic Materials; 226-230; PART II; 1-2001; 1755-1757
dc.identifier.issn
0304-8853
dc.identifier.uri
http://hdl.handle.net/11336/71709
dc.description.abstract
It is well known that layered systems can present giant magnetoresistance (GMR). Particularly, the multilayers FeN/Cu8/Fe M/Cr/ FeM/Cu8 show inverse GMR. That is, the electrical conductivity decreases with the applied magnetic field. In the most common multilayers the conductivity increases with the applied field and this kind of GMR is called direct. In general the GMR is attributed to spin-dependent scattering in the bulk and mainly at interfaces. In this work we calculate the electronic band contribution to the GMR for Fe3/Cu 4/Fe/Cr/Fe/Cu4 and Fe3/Cu4 multilayers within the semiclassical approximation. The electrical conductivity is obtained in the ballistic and diffusive regimes. The results show a large change in the GMR behavior when one layer of Cr is introduced within the Fe layers. The GMR calculated in the CPP configuration (current flowing perpendicular to layers) of Fe3/Cu4 is of the direct type, with a value of about 40% while that obtained for Fe3/Cu 4/Fe/Cr/Fe/Cu4 is inverse and of the order of 45%. In the CIP configuration (current flowing parallel to the layers) the calculated GMR is direct with a value of about 35% for the system without Cr while, by the introduction of Cr, we obtain also a direct GMR but of about 3%. © 2001 Published by Elsevier Science B.V.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Band Structure Calculations
dc.subject
Magnetoresistance-Multilayers
dc.subject
Multilayers-Metallic
dc.subject
Transport Properties
dc.subject.classification
Astronomía
dc.subject.classification
Ciencias Físicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
From direct to inverse GMR: Introduction of Cr in Fe/Cu superlattices
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-03-14T14:24:03Z
dc.journal.volume
226-230
dc.journal.number
PART II
dc.journal.pagination
1755-1757
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Milano, Julian. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; Argentina. Universidad de Buenos Aires; Argentina
dc.description.fil
Fil: Llois, Ana Maria. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; Argentina. Universidad de Buenos Aires; Argentina
dc.journal.title
Journal of Magnetism and Magnetic Materials
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1016/S0304-8853(00)00886-6
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0304885300008866
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