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Spin-flip and domain wall magnetoresistance in quantum magnetic nanocontacts

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dc.contributor.author Useinov N.
dc.contributor.author Tagirov L.
dc.date.accessioned 2018-09-18T20:08:33Z
dc.date.available 2018-09-18T20:08:33Z
dc.date.issued 2009
dc.identifier.issn 0304-8853
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/136926
dc.description.abstract The theory of nanosize point contacts made of ferromagnetic metals is developed. A general quantum scattering theory is applied to calculate magnetoresistance of a nanocontact with a domain wall located in the constriction. The exact solution of the electron motion in a potential of the linear domain wall is used as a zero-order approximation. Spin-flip and spin-conserving quantized conductances of the nanocontact are calculated by the perturbation theory by the difference between the model and the Cabrera-Falicov potentials of the domain wall. It is explicitly shown that spin-flip conductance imposes natural limitation on magnetoresistance of the point contact, which otherwise diverges in the regime of complete spin-rectified conductance through the contact. © 2009 Elsevier B.V. All rights reserved.
dc.relation.ispartofseries Journal of Magnetism and Magnetic Materials
dc.subject Giant magnetoresistance
dc.subject Nanoscale contact
dc.subject Spin polarized transport in metal
dc.title Spin-flip and domain wall magnetoresistance in quantum magnetic nanocontacts
dc.type Article
dc.relation.ispartofseries-issue 19
dc.relation.ispartofseries-volume 321
dc.collection Публикации сотрудников КФУ
dc.relation.startpage 3246
dc.source.id SCOPUS03048853-2009-321-19-SID67650110204


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  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

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