82 citations · 171 across the 8 of their papers we have counts for
8 papers
New mechanism for generating spin transfer torque without charge current
G. Autès, J. Mathon, A. Umerski
A new physical mechanism for generating spin-transfer torque is proposed. It is due to interference of bias driven nonequilibrium electrons incident on a switching junction with th…
Theory of Spin-Transfer Torque in the Current-in-Plane Geometries
O. Wessely, A. Umerski, J. Mathon
Two alternative current-induced switching geometries, in which the current flows parallel to the magnet/nonmagnet interface, are investigated theoretically using the nonequilibrium…
A selfconsistent theory of current-induced switching of magnetization
D. M. Edwards, F. Federici, J. Mathon +1
A selfconsistent theory of the current-induced switching of magnetization using nonequilibrium Keldysh formalism is developed for a junction of two ferromagnets separated by a nonm…
Quantum oscillation of magnetoresistance in tunneling junctions with a nonmagnetic spacer
H. Itoh, J. Inoue A. Umerski, J. Mathon
We make a theoretical study of the quantum oscillations of the tunneling magnetoresistance (TMR) as a function of the spacer layer thickness. Such oscillations were recently observ…
Spin waves in ultrathin ferromagnetic overlayers
L. H. M. Barbosa, A. T. Costa, J. Mathon +1
The influence of a non-magnetic metallic substrate on the spin wave excitations in ultrathin ferromagnetic overlayers is investigated for different crystalline orientations. We sho…
Fundamental Oscillation Periods of the Interlayer Exchange Coupling beyond the RKKY Approximation
M. S. Ferreira, J. d'Albuquerque e Castro, D. M. Edwards +1
A general method for obtaining the oscillation periods of the interlayer exchange coupling is presented. It is shown that it is possible for the coupling to oscillate with addition…
Exchange Coupling Between Iron Layers Separated by BCC Copper
A. T. Costa, J. d'Albuquerque e Castro, R. B. Muniz +2
The exchange coupling between Fe layers separated by BCC Cu is calculated for Fe/Cu/Fe (001) trilayers. It is shown that the coupling is basically regulated by three extrema of the…
Non-RKKY oscillations of exchange coupling in magnetic multilayers
M. S. Ferreira, J. d'Albuquerque e Castro, D. M. Edwards +1
It is shown how the exchange coupling between two ferromagnetic planes embedded in an infinite non-magnetic metal, regarded as a function of the distance between the planes, may co…