Journal ArticleDOI
Properties of nanocomposites of α-Fe and Fe3O4
P. Brahma,Sourish Banerjee,Debabrata Das,P. K. Mukhopadhyay,Sandip Chatterjee,A. K. Nigam,Dipankar Chakravorty +6 more
TLDR
In this article, a reduction treatment in hydrogen at a temperature of 683 K for a duration from 5 to 40 min is described, where the incorporation of hydrogen atoms during the reduction process appears to break down the precursor oxide particles.About:
This article is published in Journal of Magnetism and Magnetic Materials.The article was published on 2002-04-01. It has received 21 citations till now. The article focuses on the topics: Superparamagnetism & Magnetization.read more
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Book ChapterDOI
Fe-FeO Nanocomposites: Preparation, Characterization and Magnetic Properties
TL;DR: In this article, a brief introduction of Fe-FeO nanocomposites in the form of particles and thin films is given in the first part of this chapter, which includes definition, magnetic properties, preparation, structure and applications.
References
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Journal ArticleDOI
Oscillations in exchange coupling and magnetoresistance in metallic superlattice structures: Co/Ru, Co/Cr, and Fe/Cr.
TL;DR: Mise en evidence d'un interaction d'echange intercouche antiferromagnetique et d'une magnetoconductivite en saturation dans les superreseaux Co/Cr et Co/Ru.
Journal ArticleDOI
Giant magnetoresistance in heterogeneous Cu-Co alloys.
Ami E. Berkowitz,J. R. Mitchell,Matthew J. Carey,A. P. Young,Shufeng Zhang,Frederick E. Spada,F. T. Parker,Andreas Hütten,G. Thomas +8 more
TL;DR: Giant magnetoresistance in heterogeneous thin film Cu-Co alloys consisting of ultrafine Co-rich precipitate particles in a Cu-rich matrix is observed, modeled by including spin-dependent scattering at the interfaces between the particles and the matrix, as well as the spin- dependent scattering in the Co- rich particles.
Journal ArticleDOI
Giant magnetoresistance in nonmultilayer magnetic systems.
TL;DR: The observed isotropic giant magnetoresistance (GMR) in nonmultilayer magnetic systems using granular magnetic solids is shown to occur in magnetically inhomogeneous media containing nonaligned ferromagnetic entities on a microscopic scale.
Journal ArticleDOI
Surface Spin Disorder in NiFe2O4 Nanoparticles.
TL;DR: In this paper, a model of the magnetization within these particles consisting of ferrimagnetically aligned core spins and a spin-glass-like surface layer is proposed, and the qualitative features of this model are reproduced by a numerical calculation of the spin distribution.