Publications

• Article dans une revue

Self-heating phenomena in high-power III-N transistors and new thermal characterization methods developed within EU project TARGET

J. Kuzmik, S. Bychikhin, E. Pichonat, Christophe Gaquière, E. Morvan, E. Kohn, Jean-Pierre Teyssier, D. Pogany

In the framework of the Top Amplifier Research Groups in a European Team (TARGET) project, we developed a new electrical method for the temperature measurement of HEMTs and performed several unique studies on the self-heating effects in AlGaN/GaN HEMTs. This method, in combination with transient…

International Journal of Microwave and Wireless Technologies, 2009, 1, pp.153 - 160. ⟨10.1017/S1759078709990444⟩. ⟨hal-00514218⟩

• Article dans une revue

Determination of the electrostatic lever arm of carbon nanotube field effect transistors using Kelvin force microscopy

David Brunel, D. Deresmes, Thierry Melin

We use Kelvin force microscopy (KFM) to study the electrostatic properties of single-walled carbon nanotube field effect transistor devices (CNTFETs) with backgate geometry at room temperature. We show that KFM maps recorded as a function of the device backgate polarization enable a complete…

Applied Physics Letters, 2009, 94, pp.223508-1-3. ⟨10.1063/1.3148364⟩. ⟨hal-00473086⟩

• Article dans une revue

Electrons in quantum dots : one by one

S. Gustavsson, R. Leturcq, T. Ihn, K. Ensslin, A.C. Gossard

A quantum point contact placed close to a quantum dot can be used as a charge detector with time resolution to monitor the charge flow on the level of individual electrons. The current through the quantum point contact may take two possible values corresponding to the situation of an additional…

Journal of Applied Physics, 2009, 105 (12), pp.122401. ⟨10.1063/1.3116227⟩. ⟨hal-00473401⟩

• Communication dans un congrès

Microwave power performance on AlGaN/GaN HEMTs on composite substrate

Jean-Claude de Jaeger, Virginie Hoel, N. Defrance, Y. Douvry, Christophe Gaquière, M.A. Poisson, J. Thorpe, H. Lahreche, R. Langer

4th European Microwave Integrated Circuits Conference, EuMIC 2009, 2009, Italy. pp.144-147. ⟨hal-00474461⟩

• Article dans une revue

Applicability of acoustic noise correlation for structural health monitoring in nondiffuse field conditions

Emmanuel Moulin, Najib Abou Leyla, Jamal Assaad, Sébastien Grondel

Ambient noise correlation offers an elegant way of passively caracterize a medium. The principle is that in diffuse field condition, Green’s function between two sensors can be retrieved from the cross-correlated received signals. Here, the technique is applied in conditions where convergence…

Applied Physics Letters, 2009, 95, pp.094104-1-3. ⟨10.1063/1.3200240⟩. ⟨hal-00473707⟩

• Communication dans un congrès

Investigaton on fabrication of GaAsSb/InP UTC-PD based photomixer operating at 1.55 µm wavelengths

Alexandre Beck, Olivier Offranc, Mohammed Zaknoune, Emilien Peytavit, Guillaume Ducournau, Tahsin Akalin, X. Wallart, Jean-Francois Lampin

We report our investigation on realization of 1.55 mum wavelengths sensitive photomixer based on GaAsSb/InP uni-travelling-carrier photodiode. The epitaxial structure and technological steps are described.

34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009, Sep 2009, Busan, South Korea. pp.1-2, ⟨10.1109/ICIMW.2009.5324658⟩. ⟨hal-00474427⟩

• Communication dans un congrès

Piezoelectric coefficients measured by picosecond ultrasonics

P. Emery, Arnaud Devos, N. Ben Hassine, E. Defay

IEEE International Ultrasonics Symposium, 2009, Italy. pp.2178-2180, ⟨10.1109/ULTSYM.2009.5441963⟩. ⟨hal-00474456⟩

• Communication dans un congrès

Analysis of the space-time propagation channel behavior in outdoor-to-indoor environment

J.M. Conrat, H. Dekov, A. Nasr, M. Lienard

IEEE 69th Vehicular Technology Conference, VTC2009-Spring, 2009, Spain. pp.189-193, ⟨10.1109/VETECS.2009.5073395⟩. ⟨hal-00474514⟩

• Article dans une revue

Three-dimensional Monte Carlo study of three-terminal junctions based on InGaAs/InAlAs heterostructures

T. Sadi, F. Dessenne, Jean-Luc Thobel

We apply a three-dimensional (3D) semiclassical ensemble Monte Carlo simulation method to study T-branch junctions based on InGaAs/InAlAs heterostructures and obtain an accurate insight into the physics behind the operation of such structures. Electron transport in these devices is investigated and…

Journal of Applied Physics, 2009, 105 (5), pp.0537075. ⟨10.1063/1.3087703⟩. ⟨hal-00473651⟩

• Article dans une revue

Quantum confinement effect on the effective mass in two-dimensional electron gas of AlGaN/GaN heterostructures

A.M. Kurakin, S.A. Vitusevich, S.V. Danylyuk, H. Hardtdegen, N. Klein, Z. Bougrioua, A.V. Naumov, A.E. Belyaev

Journal of Applied Physics, 2009, 105, pp.073703-1-6. ⟨10.1063/1.3100206⟩. ⟨hal-00472679⟩