Publications

• Communication dans un congrès

Characterization and modeling of traps and RF frequency dispersion in AlGaN/AlN/GaN HEMTs

Hector Sanchez-Martin, Oscar Garcia-Perez, Ignacio Íñiguez-De-La-Torre, Susana Perez, Tomás González, Javier Mateos, Philippe Altuntas, N. Defrance, Marie Lesecq, Virginie Hoel, Yvon Cordier, Stephanie Rennesson

The performance of GaN transistors is still limited by physical and fabrication problems, mainly related to different kinds of traps. In this work, virgin transistors reveals strong low frequency dispersion both in the transconductance and output conductance, that we attribute to the presence of…

11th European Microwave Integrated Circuits Conference (EuMIC), Oct 2016, London, United Kingdom. paper EuMIC10-03, 153-156, ⟨10.1109/EuMIC.2016.7777513⟩. ⟨hal-03270103⟩

• Article dans une revue

Modeling and simulation of InAs/GaAs quantum dots for solar cell applications

A. Benahmed, Abdelkader Aissat, Abdelmalek Benkouider, Jean-Pierre Vilcot

This paper proposes a method of modeling and simulation of InAs/GaAs-based quantum dots (QDs) for solar cell. The main objective is to find the growth parameters in order to produce an optimal double heterostructure using two semiconductor materials InAs and GaAs. We are interested in particular on…

Optik, 2016, 127 (7), pp.3531-3534. ⟨10.1016/j.ijleo.2015.12.136⟩. ⟨hal-01434975⟩

• Article dans une revue

Growth of c -Axis-Oriented BiCuSeO Thin Films Directly on Si Wafers

Xiaolin Wu, Linjie Gao, Pascal Roussel, El Hadj Dogheche, Jianglong Wang, Guangsheng Fu, Shufang Wang

Single-phase, c-axis-oriented BiCuSeO thin films have been directly grown on the commercial silicon (001) wafers without any surface pretreatment by using pulsed laser deposition. X-ray diffraction pole figure confirms that the film does not have any ab-plane texture, whereas cross-sectional…

Journal of the American Ceramic Society, 2016, 99 (10), pp.3367-3370. ⟨10.1111/jace.14359⟩. ⟨hal-02263699⟩

• Article dans une revue

Magnetic-Phase Dependence of the Spin Carrier Mean Free Path in Graphene Nanoribbons

Jing Li, Yann-Michel Niquet, Christophe Delerue

We show theoretically that the intrinsic (phonon-limited) carrier mobility in graphene nanoribbons is considerably influenced by the presence of spin-polarized edge states. When the coupling between opposite edges switches from antiferromagnetic to ferromagnetic with increasing carrier density, the…

Physical Review Letters, 2016, 116 (23), pp.236602. ⟨10.1103/PhysRevLett.116.236602⟩. ⟨cea-01849844⟩

• Article dans une revue

METASTABILITY OF FINITE STATE MARKOV CHAINS: A RECURSIVE PROCEDURE TO IDENTIFY SLOW VARIABLES FOR MODEL REDUCTION

Claudio Landim, T. Xu

Consider a sequence (η N (t) : t ≥ 0) of continuous-time, irreducible Markov chains evolving on a fixed finite set E. Denote by R N (η, ξ) the jump rates of the Markov chain η N t , and assume that for any pair of bonds (η, ξ),

ALEA : Latin American Journal of Probability and Mathematical Statistics, 2016. ⟨hal-01728594⟩

• Communication dans un congrès

Bulk acoustic wave transformer employing periodically polled array of piezoelectric rods

Victor Plessky, Ventsislav Yantchev, C. Granger, Anne-Christine Hladky

Multilayer bulk acoustic wave transformer employing a periodical array of piezoelectric rods with alternating polarization is experimentally demonstrated for the first time. Voltage transformation coefficient in excess of 6 was measured at a frequency of 150kHz, providing thus a solid experimental…

IEEE International Ultrasonics Symposium (IUS), Sep 2016, Tours, France. ⟨10.1109/ULTSYM.2016.7728583⟩. ⟨hal-03300124⟩

• Article dans une revue

Inverse saffman-taylor experiments with particles lead to capillarity driven fingering instabilities

Ilyesse Bihi, Michael Baudoin, Jason E. Butler, Christine Faille, Farzam Zoueshtiagh

Using air to displace a viscous fluid contained in a Hele-Shaw cell can create a fingering pattern at the interface between the fluids if the capillary number exceeds a critical value. This Saffman-Taylor instability is revisited for the inverse case of a viscous fluid displacing air when partially…

Physical Review Letters, 2016, 117 (3), ⟨10.1103/PhysRevLett.117.034501⟩. ⟨hal-02636447⟩

• Article dans une revue

Reliability assessment of ultra-short gate length AlGaN/GaN HEMTs on Si substrate by on-state step stress

Hadhemi Lakhdar, Nathalie Labat, Arnaud Curutchet, N. Defrance, Marie Lesecq, J.C. Dejaeger, Nathalie Malbert

Microelectronics Reliability, 2016. ⟨hal-01718762⟩

• Article dans une revue

Mode-hopping suppression in long Brillouin fiber laser with non-resonant pumping

Gwennaël Danion, Ludovic Frein, Denis Bacquet, Grégoire Pillet, Stéphanie Molin, Loïc Morvan, Guillaume Ducournau, Marc Vallet, Pascal Szriftgiser, Mehdi Alouini

We propose a reliable method for stabilizing narrow linewidth Brillouin fiber lasers with non-resonant pumping. Mode-hopping is suppressed by means of a phase-locked loop that locks the pump-Stokes detuning to a local radio-frequency (RF) oscillator. Stable single-mode operation of a 110-m-long…

Optics Letters, 2016, 41 (10), pp.2362--2365. ⟨10.1364/OL.41.002362⟩. ⟨hal-01343401⟩

• Communication dans un congrès

InAs/Al_0.4Ga_0.6Sb side gated vertical TFET on GaAs substrate

Vinay Chinni, Mohammed Zaknoune, X. Wallart, L. Desplanque