Publications

• Article dans une revue

Comment on ''Observation of anomalous acoustic phonon dispersion in SrTiO3 by broadband stimulated Brillouin scattering'' [Appl. Phys. Lett. 98, 211907 (2011)]

Arnaud Devos, Y.C. Wen, P.A. Mante, C.K. Sun

Applied Physics Letters, 2012, 100, pp.206101-1. ⟨10.1063/1.4717244⟩. ⟨hal-00787469⟩

• Communication dans un congrès

CBRAM devices as binary synapses for low-power stochastic neuromorphic systems: auditory (cochlea) and visual (retina) cognitive processing applications

M. Suri, O. Bichler, D. Querlioz, G. Palma, E. Vianello, D. Vuillaume, C. Gamrat, B. de Salvo

In this work, we demonstrate an original methodology to use Conductive-Bridge RAM (CBRAM) devices as binary synapses in low-power stochastic neuromorphic systems. A new circuit architecture, programming strategy and probabilistic STDP learning rule are proposed. We show, for the first time, how the…

IEEE International Electron Devices Meeting, Dec 2012, San Francisco, CA, United States. ⟨10.1109/IEDM.2012.6479017⟩. ⟨hal-00803088⟩

• Article dans une revue

Low frequency dielectric loss of metal/insulator/organic semiconductor junctions in ambient conditions

Romuald Ledru, Stéphane Pleutin, Bruno Grouiez, Damien Zander, H. Bejbouji, Kamal Lmimouni, Dominique Vuillaume

The complex admittance of metal/oxide/pentacene thin film junctions is investigated under ambient conditions. At low frequencies, a contribution attributed to proton diffusion through the oxide is seen. This diffusion is shown to be anomalous and is believed to be also at the origin of the bias…

Organic Electronics, 2012, 13 (10), pp.1916-1924. ⟨10.1016/j.orgel.2012.04.035⟩. ⟨hal-00787369⟩

• Article dans une revue

Phonons in Slow Motion: Dispersion Relations in Ultra-Thin Si Membranes

John Cuffe, Emigdio Chavez, Andrey Shchepetov, Pierre-Olivier Chapuis, El Houssaine El Boudouti, Francesc Alzina, Timothy Kehoe, Jordi Gomis-Bresco, Damian Dudek, Yan Pennec, Bahram Djafari-Rouhani, Mika Prunnila, Jouni Ahopelto, Clivia. M. Sotomayor Torres

We report the changes in dispersion relations of hypersonic acoustic phonons in free-standing silicon membranes as thin as \sim 8 nm. We observe a reduction of the phase and group velocities of the fundamental flexural mode by more than one order of magnitude compared to bulk values. The…

Nano Letters, 2012, 12 (7), pp.3569-3573. ⟨10.1021/nl301204u⟩. ⟨hal-00732480⟩

• Article dans une revue

Top electrode size effect on hysteresis loops in piezoresponse force microscopy of Pb(Zr,Ti)O3-film on silicon structures

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

• Article dans une revue

Mechanism of ohmic Cr/Ni/Au contact formation on p-GaN

L. Magdenko, G. Patriarche, David Troadec, O. Mauguin, E. Morvan, M.A. Di Forte-Poisson, K. Pantzas, A. Ougazzaden, A. Martinez, A. Ramdane

Journal of Vacuum Science and Technology, 2012, 30, pp.022205-1-5. ⟨10.1116/1.3688486⟩. ⟨hal-00788195⟩

• Communication dans un congrès

Multiphonon acousto-optic interactions in normal and oblique incidence inside a 1D phoxonic cavity

Gaëtan Lévêque, E.H. El Boudouti, Abdellatif Akjouj, Yan Pennec, Bahram Djafari-Rouhani, I.E. Psarobas, N. Papanikolaou, N. Stefanou, V. Laude

SPIE 2012 Photonics West, Photonic and Phononic Properties of Engineered Nanostructures II, 2012, San Francisco, CA, United States. ⟨hal-00797763⟩

• Communication dans un congrès

Efficient control of spontaneous light emission by elastic waves

E. Almpanis, G. Gantzounis, I.E. Psarobas, N. Papanikolaou, C. Tserkezis, N. Stefanou, Bahram Djafari-Rouhani, Yan Pennec, V. Laude, A. Martinez

European Materials Research Society Spring Meeting, E-MRS Spring 2012, Symposium N : Control of light at the nanoscale : materials, techniques and applications, 2012, Strasbourg, France. ⟨hal-00797759⟩

• Communication dans un congrès

Holistic Modeling of Embedded Systems with Multi-Discipline Feedback: Application to a Precollision Mitigation Braking System

Antoine Lévêque, François Pêcheux, Marie-Minerve Louërat, Hassan Aboushady, Fabio Cenni, Serge Scotti, Abdelbasset Massouri, Laurent Clavier

The paper presents the principles, techniques and tools for the efficient modeling and simulation, at the component level, of an heterogeneous system composed of Wireless Sensor Network nodes that exhibits complex multi-discipline feedback loops that are likely to be found in many state-of-the-art…

Design, Automation and Test in Europe (DATE'12), Mar 2012, Dresden, Germany. pp.739-744. ⟨hal-00688263⟩

• Article dans une revue

In situ silicon-integrated tuner for automated on-wafer mmW noise parameters extraction using multi-impedance method for transistor characterization

Y. Tagro, N. Waldhoff, D. Gloria, S. Boret, Gilles Dambrine

IEEE Transactions on Semiconductor Manufacturing, 2012, 25, pp.170-177. ⟨10.1109/TSM.2011.2181673⟩. ⟨hal-00819467⟩