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Microwave excitations associated with a wavy angular dependence of the spin transfer torque : model and experiments
O. Boulle, V. Cros, J. Grollier +6
The spin transfer torque (STT) can lead to steady precession of magnetization without any external applied field in magnetic spin valve where the magnetic layer have very different…
Mechanisms of exchange bias with multiferroic BiFeO3 epitaxial thin films
H. Bea, M. Bibes, F. Ott +7
We have combined neutron scattering and piezoresponse force microscopy to study the relation between the exchange bias observed in CoFeB/BiFeO3 heterostructures and the multiferroi…
Room temperature spin filtering in epitaxial cobalt-ferrite tunnel barriers
A. V. Ramos, M. -J. Guittet, J. -B. Moussy +4
We report direct experimental evidence of room temperature spin filtering in magnetic tunnel junctions (MTJs) containing CoFe2O4 tunnel barriers via tunneling magnetoresistance (TM…
High Mobility in LaAlO3/SrTiO3 Heterostructures: Origin, Dimensionality and Perspectives
G. Herranz, M. Basletic, M. Bibes +9
We have investigated the dimensionality and origin of the magnetotransport properties of LaAlO3 films epitaxially grown on TiO2-terminated SrTiO3(001) substrates. High mobility con…
Shaped angular dependence of the spin transfer torque and microwave generation without magnetic field
O. Boulle, V. Cros, J. Grollier +6
The generation of oscillations in the microwave frequency range is one of the most important applications expected from spintronics devices exploiting the spin transfer phenomenon.…