Publications

• Article dans une revue

Tight-binding calculations of the optical properties of HgTe nanocrystals

Guy Allan, Christophe Delerue

We propose a tight-binding model of HgTe which gives an accurate band structure in a wide energy range compared to recent ab initio calculations. The inverted band structure near the Fermi level and its temperature dependence are also very well described. Using this parametrization, we study the…

Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2012, 86 (16), pp.165437. ⟨10.1103/PhysRevB.86.165437⟩. ⟨hal-00787874⟩

• Article dans une revue

Multifunctional solid/solid phononic crystal

N. Swinteck, Jerome O. Vasseur, Anne-Christine Hladky, Charles Croënne, S. Bringuier, P.A. Deymier

A two-dimensional, solid/solid phononic crystal (PC) comprised a square array of steel cylinders in epoxy is shown to perform a variety of spectral, wave vector, and phase-space functions. Over a range of operating frequencies, the PC’s elastic band structure shows uniquely shaped equifrequency…

Journal of Applied Physics, 2012, 112 (2), pp.024514. ⟨10.1063/1.4739264⟩. ⟨hal-00786892⟩

• Article dans une revue

Effect of heterostructure design on current-voltage characteristics in AlxGa1-xN/GaN double-barriers resonant tunneling diode

Mohamed Boucherit, Ali Soltani, Michel Rousseau, J.L. Farvacque, Jean-Claude de Jaeger

Ballistic transport in double-barriers resonant tunneling diodes based on GaN is investigated in this work using the non-equilibrium Green's functions formalism. The electron density of states, the electrons concentration, and the current-voltage characteristics are calculated taking into…

Journal of Applied Physics, 2012, 112 (11), pp.114305. ⟨10.1063/1.4767382⟩. ⟨hal-00787875⟩

• Article dans une revue

Generalized interface models for transport phenomena : unusual scale effects in composite nanomaterials

F. Pavanello, F. Manca, Pier Luca Palla, S. Giordano

The effective transport properties of heterogeneous nanoscale materials and structures are affected by several geometrical and physical factors. Among them, the presence of imperfect interfaces plays a central role being often at the origin of the scale effects. To describe real contacts between…

Journal of Applied Physics, 2012, 112 (8), pp.084306. ⟨10.1063/1.4759017⟩. ⟨hal-00787479⟩

• Article dans une revue

Nanometer-scale, quantitative composition mappings of InGaN layers from a combination of scanning transmission electron microscopy and energy dispersive x-ray spectroscopy

K. Pantzas, G. Patriarche, David Troadec, S. Gautier, T. Moudakir, S. Suresh, L. Largeau, O. Mauguin, P. L. Voss, A. Ougazzaden

Using elastic scattering theory we show that a small set of energy dispersive x-ray spectroscopy (EDX) measurements is sufficient to experimentally evaluate the scattering function of electrons in high-angle annular dark field scanning transmission microscopy (HAADF-STEM). We then demonstrate how…

Nanotechnology, 2012, 23, pp.455707-455716. ⟨10.1088/0957-4484/23/45/455707⟩. ⟨hal-00747027⟩

• 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. Pasrobas, N. Stefanou, N. Papanikolaou, V. Laude

SPIE Photonics Europe, Photonic Crystal Materials and Devices, 2012, Brussels, Belgium. ⟨hal-00798183⟩

• Article dans une revue

Hertz-Mindlin problem for arbitrary oblique 2D loading : general solution by memory diagrams

Vladislav Aleshin, Koen van den Abeele

In this paper we present a new general solution to the fundamental problem of frictional contact of two elastic spheres, also known as the Hertz–Mindlin (HM) problem. The description of spheres in contact is a central topic in contact mechanics. It became a foundation of many applications, such as…

Journal of the Mechanics and Physics of Solids, 2012, 60 (1), pp.14-36. ⟨10.1016/j.jmps.2011.10.003⟩. ⟨hal-00639830⟩

• Communication dans un congrès

A millimeter-wave elastomeric microstrip phase shifter

S. Hage-Ali, Yovan Orlic, Nicolas Tiercelin, Ronan Sauleau, Vladimir Preobrazhensky, Philippe Pernod, Philippe Coquet

This communication reports an innovative lowcost millimeter-wave microstrip phase shifter using the mechanical reconfiguration of a metallized polydimethylsiloxane (PDMS) elastomeric ground plane. The reconfigurable ground plane is used to tune an air gap under a fused quartz substrate, inducing a…

IEEE MTT-S International Microwave Symposium, IMS 2012, Jun 2012, Montréal, Canada. ⟨10.1109/MWSYM.2012.6259722⟩. ⟨hal-00772985⟩

• Autre publication scientifique

Étude de HEMTs AlGaN/GaN à grand développement pour la puissance hyperfréquence : conception et fabrication, caractérisation et fiabilité

Yannick Douvry

2012. ⟨hal-00799322⟩

• Communication dans un congrès

Pulse shaper for THz wireless communication

Israel Arnedo, Magdalena Chudzik, Abbas Ghaddar, Aintzane Lujambio, Fernando Teberio, Ivan Arregui, Guillaume Ducournau, Jean-Francois Lampin, Txema Lopetegi, Miguel A. G. Laso, Tahsin Akalin

International Symposium on Frontiers in THz Technology, FTT 2012, 2012, Nara, Japan. ⟨hal-00820995⟩