Publicaciones

• Article dans une revue

Initial stages of graphitization on SiC(000-1), as studied by phase atomic force microscopy

F.J. Ferrer, E. Moreau, D. Vignaud, D. Deresmes, S. Godey, X. Wallart

The initial stages of graphitization on 4H- and 6H-SiC (000-1) under ultrahigh vacuum at temperatures of 1125–1175°C have been studied by atomic force microscopy (AFM), X-ray photoemission spectroscopy and reflected high energy electron diffraction. A progressive coverage of the surface by graphene...

Journal of Applied Physics, 2011, 109 (5), pp.054307-1-6. ⟨10.1063/1.3560896⟩. ⟨hal-00577059⟩

• Article dans une revue

Influence of a localized defect on acoustic field correlation in a reverberant medium

Najib Abou Leyla, Emmanuel Moulin, Jamal Assaad

Journal of Applied Physics, 2011, 110, pp.084906-1-8. ⟨10.1063/1.3652907⟩. ⟨hal-00639940⟩

• Article dans une revue

Phase-control in two-dimensional phononic crystals

N. Swinteck, S. Bringuier, J.F. Robillard, Jerome O. Vasseur, Anne-Christine Hladky, K. Runge, P.A. Deymier

A theoretical model is developed to ascertain the necessary band structure and equi-frequency contour (EFC) features of two-dimensional phononic crystals (PCs) for the realization of phase control between propagating acoustic waves. Two different PCs, a square array of cylindrical polyvinylchloride...

Journal of Applied Physics, 2011, 110 (7), pp.074507. ⟨10.1063/1.3641634⟩. ⟨hal-00639810⟩

• Article dans une revue

Investigation of the anisotropic strain relaxation in GaSb islands on GaP

Y. Wang, P. Ruterana, H.P. Lei, Jie Chen, S. Kret, S. El Kazzi, L. Desplanque, X. Wallart

Journal of Applied Physics, 2011, 110, pp.043509-1-8. ⟨10.1063/1.3622321⟩. ⟨hal-00639828⟩

• Article dans une revue

Anisotropic excitonic effects in the energy loss function of hexagonal boron nitride

S. Galambosi, L. Wirtz, J.A. Soininen, J. Serrano, A. Marini, K. Watanabe, T. Taniguchi, S. Huotari, A. Rubio, K. Hamalainen

The anisotropy of the valence energy-loss function of hexagonal boron nitride (hBN) is shown to be largely enhanced by the highly inhomogeneous character of the excitonic states. The energy loss with momentum transfer parallel to the BN layers is dominated by strongly bound, quasi-two-dimensional...

Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2011, 83 (8), pp.081413. ⟨10.1103/PhysRevB.83.081413⟩. ⟨hal-00579067⟩

• Article dans une revue

Subterahertz hypersound attenuation in silica glass studied via picosecond acoustics

Simon Ayrinhac, Marie Foret, Arnaud Devos, Benoit Ruffle, Eric Courtens, René Vacher

We report picosecond acoustic measurements in silica-glass films grown by wet thermal oxidation on a (111) silicon substrate. The longitudinal acoustic phonons are observed over the range from 150 to 300 GHz using an infrared pump and a second harmonic blue probe. The transducer is an aluminum thin...

Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2011, 83 (1), pp.014204. ⟨10.1103/PhysRevB.83.014204⟩. ⟨hal-00567412⟩

• Article dans une revue

Vortex state in thin films of multicomponent ferroelectrics

Laurent Baudry, Anaïs Sené, Igor A. Luk'Yanchuk, Laurent Lahoche

The distribution of polarization in thin film of multicomponent weak anisotropic ferroelectric under application of an axially symmetric electric field induced by circular electrodes is studied. We demonstrate that above a certain critical field the instability towards abrupt formation of...

Thin Solid Films, 2011, 519 (17), pp.5808-5810. ⟨10.1016/j.tsf.2010.12.192⟩. ⟨hal-00603009⟩

• Communication dans un congrès

Organic synapstor for neuro-inspired circuits

F. Alibart, S. Pleutin, David Guérin, O. Bichler, C. Gamrat, D. Vuillaume

Matériaux et Nanostructures π-Conjugués, MNPC 11, 2011, Oberani, France. ⟨hal-00807727⟩

• Communication dans un congrès

Comparison of the tunability performances and loss factor up to 60 GHz of some ferroelectric materials : BST and doped BST, PST, hetero structures BST/BZN

Denis Remiens, Freddy Ponchel, Jean-François Legier, Caroline Soyer, T. Lasri, L. Yang, X.L. Lei, Gang Wang, X. Dong

Joint 20th IEEE International Symposium on Applications of Ferroelectrics and 2011 International Symposium on Piezoresponse Force Microscopy and Nanoscale Phenomena in Polar Materials, ISAF-PFM-2011, 2011, Vancouver, Canada. ⟨hal-00807661⟩

• Communication dans un congrès

Digital microfluidic on superhydrophobic surfaces for high sensitive mass spectrometry analysis

F. Lapierre, G. Piret, H. Drobecq, O. Melnyk, Yannick Coffinier, V. Thomy, Rabah Boukherroub

CSIRO Advanced Materials Conference, 2011, Melbourne, Victoria, Australia. ⟨hal-00807649⟩