Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/95025
Type: Artigo de periódico
Title: Magnetoresistance Of Fe-ta-o Films Prepared By Rf Plasma Jet Method
Author: Kraus L.
Chayka O.
Tous J.
Fendrych F.
Pirota K.R.
Siena M.
Jastrabik L.
Abstract: The structure, magnetic and electric properties of Fe-Ta-O films prepared by the RF plasma jet technique were investigated. With increasing content of O the conductance changes from metallic to tunnelling one. In some films with the Fe/Ta ratio close to 0.25 the superparamagnetic properties and spin-dependent tunnelling magnetoresistance (with Ap/p up to 1.5% at 77.3 K) were observed. The behavior can be explained by the nanogranular structure consisting of ferromagnetic metallic grains embedded in an insulating amorphous matrix. © 2001 Elsevier Science B.V. All rights reserved.
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Rights: fechado
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Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-78049411395&partnerID=40&md5=7d62914543da5a7aa00a2dfb5ad35d51
Date Issue: 2001
Appears in Collections:Unicamp - Artigos e Outros Documentos

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