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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.
Citation: Journal Of Magnetism And Magnetic Materials. , v. 226-230, n. PART I, p. 669 - 670, 2001.
Rights: fechado
Identifier DOI: 
Date Issue: 2001
Appears in Collections:Unicamp - Artigos e Outros Documentos

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