Journal Article10.1103/PHYSREVB.43.1297
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
1.9K
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.
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Abstract: We show that the in-plane magnetoresistance of sandwiches of uncoupled ferromagnetic (${\mathrm{Ni}}_{81}$${\mathrm{Fe}}_{19}$,${\mathrm{Ni}}_{80}$${\mathrm{Co}}_{20}$,Ni) layers separated by ultrathin nonmagnetic metallic (Cu,Ag,Au) layers is strongly increased when the magnetizations of the two ferromagnetic layers are aligned antiparallel. Using NiFe layers, we report a relative change of resistance of 5.0% in 10 Oe at room temperature. The comparison between different ferromagnetic materials (alloys or pure elements) leads us to emphasize the role of bulk rather than interfacial spin-dependent scattering in these structures, in contrast to Fe/Cr multilayers.
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Citations
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Variation in ferromagnetic domain density and domain asymmetry in Fe / FeF 2 exchange bias structures
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References
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.
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.
4.5K
Tunneling between ferromagnetic films
TL;DR: In this article, the mean magnetizations of the two ferromagnetic film are parrallel or antiparallel and conductance measurement is related to the spin polarizations of conduction electrons.
4.1K
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.
2.8K
Conductance and exchange coupling of two ferromagnets separated by a tunneling barrier.
TL;DR: In this article, a theory is given for three closely related effects involving a nonmagnetic electron-tunneling barrier separating two ferromagnetic conductors, and the theory predicts that the valve effect is weak and that the coupling is antiferromagnetic (Jl0).
1.8K