Journal ArticleDOI
Oscillations in giant magnetoresistance and antiferromagnetic coupling in [Ni81Fe19/Cu]N multilayers
Reads0
Chats0
TLDR
In this paper, the authors reported giant magnetoresistance in [Ni81Fe19/Cu]N multilayers at 4.2 K, with an oscillation period and phase similar to that in Co/Cu multilayer.Abstract:
We report giant magnetoresistance in [Ni81Fe19/Cu]N multilayers. Saturation magnetoresistance values exceeding 16% for saturation fields of only 600 Oe are found at 300 K. In addition, we show evidence for well‐defined oscillations in saturation magnetoresistance as a function of Cu spacer layer thickness at 4.2 K, with an oscillation period and phase similar to that in Co/Cu multilayers. However, the temperature dependence of the magnetoresistance, while weak for thin Cu layers, is much stronger for thicker Cu layers. Consequently at 300 K only a single oscillation in magnetoresistance for thin Cu layers is found. We show that the properties of the Ni81Fe19/Cu multilayers are very sensitive to annealing at moderate temperatures, which may limit the possible technological applications of such structures.read more
Citations
More filters
Journal ArticleDOI
Giant magneto-impedance in Co-rich amorphous wires and films
TL;DR: In this article, a comprehensive analysis of magneto impedance (MI) phenomena in Co-rich amorphous materials is presented on the basis of skin effect in combination with dynamical magnetization processes.
Journal ArticleDOI
Giant magnetoresistance in spin-valve multilayers
TL;DR: In this paper, a comprehensive review of giant magnetoresistance in spin-valve sandwiches and multilayers is presented, highlighting the experimental and theoretical results which are of particular interest for the development of applications of these systems, especially in magnetic recording technology.
Journal ArticleDOI
Tunnel-type GMR in metal-nonmetal granular alloy thin films
TL;DR: In this paper, the spin-dependent tunneling effect of giant magnetoresistance (GMR) in Co-base CoAlO granular alloy thin films has been investigated and it has been found that GMR changes depending on O content and appears with a maximum near the percolation threshold point from metallic conductance to tunnel conductance in CoAl-Ogranular Alloy thin films.
Journal ArticleDOI
Giant magnetoresistance in electrodeposited films
TL;DR: In this paper, the growth and characterization of superlattice nanowires are discussed, which are ideal for measurements of GMR in the current perpendicular to plane (CPP) geometry and are an example of a structure which can only be produced by electrodeposition.
Journal ArticleDOI
Giant magneto-impedance effect in nanostructured magnetic wires
TL;DR: In this article, the giant magneto-impedance effect (GMI) was studied as a function of the structural modification induced in an Fe73.5Si13.5B9Cu1Nb3 amorphous alloy wire by annealing.
References
More filters
Journal ArticleDOI
Giant magnetoresistance of (001)Fe/(001)Cr magnetic superlattices.
Mario Norberto Baibich,J. M. Broto,Albert Fert,F. Nguyen Van Dau,Frédéric Petroff,P. Etienne,G. Creuzet,A. Friederich,Jean Chazelas +8 more
TL;DR: This work ascribes this giant magnetoresistance of (001)Fe/(001)Cr superlattices prepared by molecularbeam epitaxy to spin-dependent transmission of the conduction electrons between Fe layers through Cr layers.
Journal ArticleDOI
Enhanced magnetoresistance in layered magnetic structures with antiferromagnetic interlayer exchange
TL;DR: The electrical resistivity of Fe-Cr-Fe layers with antiferromagnetic interlayer exchange increases when the magnetizations of the Fe layers are aligned antiparallel, much stronger than the usual anisotropic magnetoresistance.
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 magnetoresistive in soft ferromagnetic multilayers.
Bernard Dieny,Virgil Simon Speriosu,Stuart S. P. Parkin,B.A. Gurney,Dennis R. Wilhoit,Daniele Mauri +5 more
TL;DR: On montre que la resistance magnetique dans le plan, des sandwiches de couches ferromagnetiques non couplees separees par des couches metalliques ultrafines non magnetiques (Cu, Ag, Au, Au), est fortement accrue lorsque les aimantations des deux couchettes sont antiparalleles.
Journal ArticleDOI
Oscillatory magnetic exchange coupling through thin copper layers
TL;DR: It is shown that Co slabs are indirectly exchanged coupled via thin Cu layers with a coupling that alternates back and forth between antiferromagnetic and ferromagnetic superlattices, confirming theoretical predictions more than 25 years old.