Publications

• Article dans une revue

AlN/IDT/AlN/Sapphire SAW Heterostructure for High-Temperature Applications

Ouarda Legrani, Thierry Aubert, Omar Elmazria, Ausrine Bartasyte, Pascal Nicolay, Abdelkrim Talbi, Pascal Boulet, Jaafar Ghanbaja, Denis Mangin

Recent studies have evidenced that Pt/AlN/Sapphire SAW devices are promising for high-temperature high-frequency applications. However, they cannot be used above 700°C in air atmosphere as the Pt interdigital transducers (IDTs) agglomerate and the AlN layer oxidizes in such conditions. In this…

IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2016, 63 (6), pp.898 - 906. ⟨10.1109/TUFFC.2016.2547188⟩. ⟨hal-01525494⟩

• Article dans une revue

Electronic structure investigation of Al0.7Ga0.3As/GaAs nanometric heterostructures by Kelvin force microscopy

Sylvain Pouch, Francois Triozon, Nicolas Chevalier, Thierry Melin, Yann Michel Niquet, Lukasz Borowik

Kelvin force microscopy provides a spatially resolved measurement of the surface potential, which is related to the energetic band structure of a material. The goal of this work is to investigate the surface potential on Al0.7Ga0.3As and GaAs heterostructures with a decreasing layer thickness up to…

RSC Advances, 2016, 6 (8), pp.6782-6787. ⟨10.1039/c5ra24505b⟩. ⟨cea-01851572⟩

• 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

Broadband dielectric characterization of aqueous saline solutions by an interferometer-based microwave microscope

S. Gu, Tianjun Lin, T. Lasri

The complex dielectric permittivity of aqueous saline solutions has been determined in the frequency range [2-18 GHz] with a home-made near-field microwave microscope. The instrument is built on a vector network analyzer, a matching network, and an evanescent microwave probe. The interferometer-…

Applied Physics Letters, 2016, 108 (24), pp.242903. ⟨10.1063/1.4953629⟩. ⟨hal-03538486⟩

• Article dans une revue

Investigation of the Effect of Plasma Polymerized Siloxane Coating for Enzyme Immobilization and Microfluidic Device Conception

Kalim Belhacene, Adil Elagli, Céline Vivien, A. Treizebre, Pascal Dhulster, Philippe Supiot, Renato Froidevaux

This paper describes the impact of a physical immobilization methodology, using plasma polymerized 1,1,3,3, tetramethyldisiloxane, on the catalytic performance of β-galactosidase from Aspergillus oryzae in a microfluidic device. The β-galactosidase was immobilized by a polymer coating grown by…

Catalysts, 2016, 6 (12), pp.209. ⟨10.3390/catal6120209⟩. ⟨hal-03090541⟩

• 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⟩

• Communication dans un congrès

Clustering of radio channel parameters: Evaluation of a novel automatic identification algorithm

Shiqi Cheng, Davy Gaillot, M. Lienard, Pierre Degauque, Maria-Teresa Martinez-Ingles, Jose-Maria Molina-Garcia-Pardo

Joint 2016 IEEE International Symposium on Antennas and Propagation and URSI/USNC National Radio Science Meeting, AP-S/USNC-URSI 2016, Jun 2016, Fajardo, PR, United States. pp.1687-1688, ⟨10.1109/APS.2016.7696550⟩. ⟨hal-03346239⟩

• Article dans une revue

Polarimetric distance-dependent models for large hall scenarios

Shiqi Cheng, Davy Gaillot, Emmeric Tanghe, Pierre Laly, Thierry Demol, Wout Joseph, Luc Martens, M. Lienard

IEEE Transactions on Antennas and Propagation, 2016, 64, pp.1907-1917. ⟨10.1109/TAP.2016.2535100⟩. ⟨hal-03346250⟩

• Article dans une revue

High photocatalytic activity of plasmonic Ag@AgCl/Zn₂SnO₄ nanocomposites synthesized using hydrothermal method

M. Ben Ali, A. Hamdi, H. Elhouichet, B. Sieber, A. Addad, Yannick Coffinier, L. Boussekey, M. Férid, Sabine Szunerits, Rabah Boukherroub

Ag@AgCl/Zn₂SnO₄ (ZTO) nanocomposites were successfully prepared by a hydrothermal method. The morphology, structure, composition, and optical properties of the developed composites were examined using scanning electron microscopy (SEM), transmission…

• Article dans une revue

Above 2000 V breakdown voltage at 600 K GaN-on-silicon high electron mobility transistors

Nicolas Herbecq, Isabelle Roch-Jeune, Astrid Linge, Malek Zegaoui, Pierre-Olivier Jeannin, Nicolas Clément, Jean-Paul Rouger, F Medjdoub

Physica Status Solidi A (applications and materials science), 2016, 213 (4), pp.873--877. ⟨10.1002/pssa.201532572⟩. ⟨hal-02277752⟩