128 citations · 559 across the 15 of their papers we have counts for
15 papers
Nanocontact vortex oscillators based on CoMnGe pseudo-spin valves
Jérémy Létang, Claudia de Melo, Charles Guillemard +9
We present an experimental study of vortex dynamics in magnetic nanocontacts based on pseudo spin valves comprising the CoMnGe Heusler compound. The films were grown by molecul…
Engineering CoMnAlSi Heusler compounds as a model system to correlate spin polarization, intrinsic Gilbert damping and ultrafast demagnetization
C. Guillemard, W. Zhang, G. Malinowski +8
Engineering of magnetic materials for developing better spintronic applications relies on the control of two key parameters: the spin polarization and the Gilbert damping responsib…
Ultra-low magnetic damping in Co 2 Mn-based Heusler compounds: promising materials for spintronic
C Guillemard, S. Petit-Watelot, L. Pasquier +8
The prediction of ultra-low magnetic damping in Co 2 MnZ Heusler half-metal thin-film magnets is explored in this study and the damping response is shown to be linked to the underl…
Chaos in Magnetic Nanocontact Vortex Oscillators
Thibaut Devolder, Damien Rontani, Sébastien Petit-Watelot +10
We present an experimental study of spin-torque driven vortex self-oscillations in magnetic nanocontacts. We find that above a certain threshold in applied currents, the vortex gyr…
Co/Ni multilayers for spintronics: high spin-polarization and tunable magnetic anisotropy
S. Andrieu, T. Hauet, M. Gottwald +13
In this paper we analyze in details the electronic properties of (Co/Ni) multilayers, a model system for spintronics devices. We use magneto-optical Kerr (MOKE), spin-polarized pho…
Epitaxial Heusler Superlattice Co2MnAl/Fe2MnAl with Perpendicular Magnetic Anisotropy and Termination-Dependent Half-Metallicity
Tobias L. Brown-Heft, Anthony P. McFadden, John A. Logan +5
Single-crystal Heusler atomic-scale superlattices that have been predicted to exhibit perpendicular magnetic anisotropy and half-metallicity have been successfully grown by molecul…
Long range phase coherencein double barrier magnetic tunnel junctions with large thick metallic quantum well
B. S. Tao, H. X. Yang, Y. L. Zuo +11
Double barrier heterostructures are model systems for the study of electron tunneling and discrete energy levels in a quantum well (QW). Until now resonant tunneling phenomena in m…
Direct evidence for minority spin gap in the Co2MnSi Heusler alloy
Stéphane Andrieu, Amina Neggache, Thomas Hauet +6
Half Metal Magnets are of great interest in the field of spintronics because of their potential full spin-polarization at the Fermi level and low magnetization damping. The high Cu…
Band edge noise spectroscopy of a magnetic tunnel junction
Farkhad G. Aliev, Juan Pedro Cascales, Ali Hallal +2
We propose a conceptually new way to gather information on the electron bands of buried metal(semiconductor)/insulator interfaces. The bias dependence of low frequency noise in Fe$…
Bias dependence of tunneling magnetoresistance in magnetic tunnel junctions with asymmetric barriers
Alan Kalitsov, Pierre-Jean Zermatten, Frédéric Bonell +5
The transport properties of magnetic tunnel junctions (MTJs) are very sensitive to interface modifications. In this work we investigate both experimentally and theoretically the ef…
Probing the anharmonicity of the potential well for magnetic vortex core in nanodot
O. V. Sukhostavets, B. Pigeau, G. de Loubens +6
The anharmonicity of the potential well confining the position of the magnetic vortex core is measured dynamically with a Magnetic Resonance Force Microscope (MRFM). The stray fiel…
Measurement of the dynamical dipolar coupling in a pair of magnetic nano-disks using a Ferromagnetic Resonance Force Microscope
Benjamin Pigeau, Christian Hahn, Grégoire De Loubens +7
We perform an extensive experimental spectroscopic study of the collective spin-wave dynamics occurring in a pair of magnetic nano-disks coupled by the magneto-dipolar interaction.…
Giant thermoelectric effect in Al2O3 magnetic tunnel junctions
Weiwei Lin, Michel Hehn, Laurent Chaput +4
Thermoelectric effects in magnetic nanostructures and the so-called spin caloritronics are attracting much interest. Indeed it provides a new way to control and manipulate spin cur…
Size effect on magnetism of Fe thin films in Fe/Ir superlattices
S. Andrieu, C. Chatelain, M. Lemine +2
In ferromagnetic thin films, the Curie temperature variation with the thickness is always considered as continuous when the thickness is varied from to atomic planes. We…
Finite-size scaling in thin Fe/Ir(100) layers
Malte Henkel, Stéphane Andrieu, Philippe Bauer +1
The critical temperature of thin Fe layers on Ir(100) is measured through Mößbauer spectroscopy as a function of the layer thickness. From a phenomenological finite-size scaling an…