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dc.contributor.author
Helman, Christian
dc.contributor.author
Llois, Ana Maria
dc.date.available
2017-09-27T20:31:34Z
dc.date.issued
2013-07
dc.identifier.citation
Helman, Christian; Llois, Ana Maria; Strain induced anisotropy change in ultrathin Fe films grown on MnAs(110)/GaAs(001); Institute of Electrical and Electronics Engineers; IEEE Transactions on Magnetics; 49; 8; 7-2013; 4675-4678
dc.identifier.issn
0018-9464
dc.identifier.uri
http://hdl.handle.net/11336/25270
dc.description.abstract
Mechanical stress due to a misfit between a thin film and its substrate induces strains which can strongly modify the unstrained thin film properties. One good and interesting example to study strain effects is given by ultrathin films of Fe epitaxially grown on MnAs(110)/GaAs(001). The MnAs(110) films show, at room temperature, coexistence of two structural phases, which organize themselves forming a striped pattern. The Fe epilayer senses the strain effects due to lattice mismatch and to the border constraints given by the striped substrate. In this work, we are concerned with the consequences that this strain has on the magnetic anisotropy of the Fe thin film and try to explain recent experimental results. These experiments indicate an easy axis rotation of the film Fe atoms sitting on one of the striped phases. In order to have an approach to the understanding of the observed phenomenon, we make use of ab initio calculations and of the magnetoelastic model. We find that both the magnetoelastic model and the ab initio calculated spin orbit coupling point towards the strain effects as the most important contribution to the observed easy axis rotation.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Institute of Electrical and Electronics Engineers
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Magnetic Anisotrophy
dc.subject
Magnetic Devices
dc.subject
Magnetoelasticity
dc.subject
Nanomaterials
dc.subject.classification
Otras Ciencias Físicas
dc.subject.classification
Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Strain induced anisotropy change in ultrathin Fe films grown on MnAs(110)/GaAs(001)
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-09-21T18:54:30Z
dc.identifier.eissn
1941-0069
dc.journal.volume
49
dc.journal.number
8
dc.journal.pagination
4675-4678
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Nueva York
dc.description.fil
Fil: Helman, Christian. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes. Gerencia de Investigación y Aplicaciones; Argentina
dc.description.fil
Fil: Llois, Ana Maria. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina
dc.journal.title
IEEE Transactions on Magnetics
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://ieeexplore.ieee.org/document/6566111/
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1109/TMAG.2013.2260323
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