Publications

• Article dans une revue

Spin-dependent photoelectron tunneling from GaAs into magnetic cobalt

D. Vu, H. Jurca, F. Maroun, P. Allongue, N. Tournerie, A. Rowe, D. Paget, S. Arscott, Emilien Peytavit

The spin dependence of the photoelectron tunnel current from free standing GaAs films into outof-plane magnetized Cobalt films is demonstrated. The measured spin asymmetry (A) resulting from a change in light helicity, reaches ±6% around zero applied tunnel bias and drops to ±2% at a bias of -1.6 V…

Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2011, 83 (12), pp.121304(R). ⟨10.1103/PhysRevB.83.121304⟩. ⟨hal-02345792⟩

• Article dans une revue

Thickness effect on nanoscale electromechanical activity in Pb(Mg1/3Nb2/3)O3-PbTiO3 thin films studied by piezoresponse force microscopy

A. Ferri, M. Detalle, J.F. Blach, M. Warenghem, Denis Remiens, R. Desfeux

0.7Pb(Mg1/3Nb2/3)O3–0.3PbTiO3 (PMN–PT) ferroelectric thin films with thickness ranging from 28 to 110 nm were sputter deposited onto LaNiO3/SiO2/Si substrates. Optical properties were determined by spectroscopic ellipsometry. We found B = 4.6 and λ0 = 209 nm, which is consistent for all PMN–PT…

Journal of Applied Physics, 2011, 110 (10), pp.104101. ⟨10.1063/1.3660526⟩. ⟨hal-00783533⟩

• Communication dans un congrès

Visualisation de l'écoulement autour d'une aile d'insecte artificielle

Thomas Vanneste, Jean-Paul Bourez, Jean-Bernard Paquet, Sébastien Grondel, Eric Cattan

Le projet d'insecte artificiel IN-ART vise à la réalisation d'un nano-drone à ailes vibrantes de la taille d'un insecte en s'appuyant sur le biomimétisme pour reproduire ses battements d'ailes. Les prototypes, réalisés à l'aide des techniques de fabrication…

14ème Congrès Français de Visualisation et de Traitement d'Images en Mécanique des Fluides, FLUVISU 14, 2011, Lille, France. pp.1-9. ⟨hal-05028409⟩

• Communication dans un congrès

Prototyping of a like insect flapping wing object

A. Bontemps, T. Vanneste, X.Q. Bao, J.B. Paquet, Sébastien Grondel, Eric Cattan

International Workshop on Bio-inspired Robots, 2011, Nantes, France. ⟨hal-00591400⟩

• Communication dans un congrès

Polymer-based flapping-wing robotic insects : progresses in wing fabrication, conception and simulation

T. Vanneste, A. Bontemps, X.Q. Bao, Sébastien Grondel, J.B. Paquet, Eric Cattan

ASME 2011 International Mechanical Engineering Congress & Exposition, IMECE 2011, 2011, Denver, CO, United States. pp.IMECE2011-63602-1-8. ⟨hal-00800403⟩

• Communication dans un congrès

Étude par ultrasons-laser de l'influence d'un défaut débouchant sur la propagation des ondes acoustiques

Frédéric Faëse, Frédéric Jenot, Mohammadi Ouaftouh, Marc Duquennoy

XIIèmes Journées d'Acoustique Physique Sous-Marine et Ultrasonore, JAPSUS 2011, 2011, Lille, France. ⟨hal-00807691⟩

• Article dans une revue

High frequency ultrasound, a tool for elastic properties measurement of thin films fabricated on silicon

Pierre Campistron, Julien Carlier, N. Saad, J. Gao, Malika Toubal, L. Dupont, Georges Nassar, Bertrand Nongaillard

The main goal of this work is to develop an ultrasonic high frequency measurement method for the characterization of thin layers. The development of high frequency acoustic transducers for longitudinal waves and shear waves on silicon has made it possible to develop characterization of thin films…

Advanced Materials Research, 2011, 324, pp.277-281. ⟨10.4028/www.scientific.net/AMR.324.277⟩. ⟨hal-00795917⟩

• Article dans une revue

Asymmetry of polarization reversal and current-voltage characteristics of Pt/PZT-Film/Pt:Ti/SiO2/Si-substrate structures

S.L. Bravina, N.V. Morozovsky, J. Costecalde, Caroline Soyer, Denis Remiens, D. Deresmes

The characterization of the asymmetries of bipolar charge-voltage and current-voltage loops of polarization reversal and unipolar current-voltage curves for Pt/PZT-film/Pt:Ti/SiO2/Si-substrate systems was performed in the dynamic mode. The asymmetry of local deformation-voltage loops was observed…

Smart Materials Research, 2011, 2011, pp.374915. ⟨10.1155/2011/374915⟩. ⟨hal-00783492⟩

• Communication dans un congrès

Tuning the Kohn anomaly in the phonon dispersion of graphene by interaction with the substrate and by doping

L. Wirtz, A. Allard, Claudio Attaccalite, M. Lazzeri, Francesco Mauri, A. Rubio

American Physical Society March Meeting, APS March Meeting 2011, 2011, Dallas, TX, United States. ⟨hal-00579043⟩

• Article dans une revue

Variations in the work function of doped single- and few-layer graphene assessed by Kelvin probe force microscopy and density functional theory

D. Ziegler, P. Gava, J. Güttinger, F. Molitor, L. Wirtz, M. Lazzeri, A.M. Saitta, A. Stemmer, Francesco Mauri, C. Stampfer

Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2011, 83, pp.235434-1-7. ⟨10.1103/PhysRevB.83.235434⟩. ⟨hal-00639882⟩