Publications

• Article dans une revue

Giant rotary power of a fishnet-like metamaterial

S.X. Wang, F. Garet, Eric Lheurette, M. Astic, J.L. Coutaz, D. Lippens

We show experimentally and numerically that cholesteric-type metal-dielectric structures, made of twisted sub-wavelength hole elliptical–shaped arrays, exhibit strong optical activity and circular dichroism. The experimental demonstration is carried out with terahertz time-domain spectroscopy…

APL Materials, 2013, 1, pp.032116-1-6. ⟨10.1063/1.4821627⟩. ⟨hal-00871905⟩

• Article dans une revue

Stochastic magnetization dynamics in single domain particles

S. Giordano, Yannick Dusch, Nicolas Tiercelin, Philippe Pernod, Vladimir Preobrazhensky

Magnetic particles are largely utilized in several applications ranging from magnetorheological fluids to bioscience and from nanothechnology to memories or logic devices. The behavior of each single particle at finite temperature (under thermal stochastic fluctuations) plays a central role in…

The European Physical Journal B: Condensed Matter and Complex Systems, 2013, 86, pp.249-1-11. ⟨10.1140/epjb/e2013-40128-x⟩. ⟨hal-00871908⟩

• Article dans une revue

DC, RF and noise performance of InAs/AlSb HEMTs with in situ CVD SiNx-film for early-protection against oxidation

Giuseppe Moschetti, Eric Lefebvre, Martin Fagerlind, Per-Åk Nilsson, L. Desplanque, Xavier Wallart, Jan Grahn

A new method for avoiding air exposure of the mesa-floor during processing of shallow-mesa InAs/AlSb HEMTs is reported. The method is based on the in situ chemical vapor deposition (CVD) of a SiNx-film, right after the shallow-mesa dry-etch process. The in situ CVD method allows also growing a…

Solid-State Electronics, 2013, 87, pp.85-89. ⟨10.1016/j.sse.2013.06.008⟩. ⟨hal-00871902⟩

• Communication dans un congrès

Réalisation de capacités interdigitées à partir de filmes minces ferroélectriques dans le domaine de fréquence RF et millimétrique

Areski Ghalem, Freddy Ponchel, Ming Wu, Denis Remiens, Tuami Lasri

Dans cet article, nous décrivons la conception et la caractérisation de capacités interdigitées réalisées à partir de films minces ferroélectriques. Après une caractérisation structurale puis diélectrique du film de Ba0.3Sr0.7TiO3 jusqu'à 67 GHz, la conception des capacités interdigitées (IDC…

16èmes Journées Nationales du Réseau Doctoral en Micro-Nanoélectronique, JNRDM 2013, 2013, Grenoble, France. papier 85, 4 p. ⟨hal-00977474⟩

• Communication dans un congrès

Blind primary user identification in MIMO cognitive networks

A. Ghosh, W. Hamouda, Iyad Dayoub

Early detection of primary users presence is one of the most important tasks for cognitive communication. Also, in cognitive settings cognitive nodes may receive signals from primary users and from other cognitive users simultaneously. For such scenario, we propose primary user signal detection…

IEEE International Conference on Communications, IEEE ICC 2013, 2013, Budapest, Hungary. pp.4546-4550, ⟨10.1109/ICC.2013.6655285⟩. ⟨hal-00921193⟩

• Article dans une revue

Scanning Gate Spectroscopy of transport across a Quantum Hall Nano-Island

F. Martins, S. Faniel, B. Rosenow, M. G. Pala, Hermann Sellier, Serge Huant, L. Desplanque, X. Wallart, Vincent Bayot, B. Hackens

We explore transport across an ultra-small Quantum Hall Island (QHI) formed by closed quan- tum Hall edge states and connected to propagating edge channels through tunnel barriers. Scanning gate microscopy and scanning gate spectroscopy are used to first localize and then study a single QHI near a…

New Journal of Physics, 2013, 15, pp.013049. ⟨10.1088/1367-2630/15/1/013049⟩. ⟨hal-00932990⟩

• Article dans une revue

Planning the electron traffic in semiconductor networks: A mesoscopic analog of the Braess paradox encountered in road networks

Serge Huant, S. Baltazar, Peng Liu, Hermann Sellier, B. Hackens, F. Martins, Vincent Bayot, X. Wallart, L. Desplanque, M. G. Pala

By combining quantum simulations of electron transport and scanning-gate microscopy, we have shown that the current transmitted through a semiconductor two-path rectangular network in the ballistic and coherent regimes of transport can be paradoxically degraded by adding a third path to the network…

AIP Conference Proceedings, 2013, 1566, pp.229. ⟨10.1063/1.4848369⟩. ⟨hal-00933050⟩

• Article dans une revue

Tailored molecular design for supramolecular network engineering on a silicon surface

Younes Makoudi, Bulent Baris, Judicaël Jeannoutot, Frank Palmino, B. Grandidier, Frederic Cherioux

The growth of supramolecular assembly on a surface is governed by the competition between intermolecular interactions and molecule-substrate interactions. Here, we investigated the formation of molecular networks on the passivated Si(111)-B semiconductor surface with scanning tunneling microscopy…

ChemPhysChem, 2013, 14 (5), pp.900-904. ⟨10.1002/cphc.201200822⟩. ⟨hal-00808155⟩

• Communication dans un congrès

In-situ growth of PbS nanoparticles on ZnO nanowires and nanowalls for 3rd generation solar cells

Basma El Zein, M. Abulekimu, S. Boulfrad, R. Sougrat, El Hadj Dogheche, G.E. Jabbour

European Materials Research Society Spring Meeting, E-MRS Spring 2013, Symposium D - Advanced inorganic materials and structures for photovoltaics, 2013, Strasbourg, France. ⟨hal-00819704⟩

• Communication dans un congrès

Low work function thin film growth for high efficiency thermionic energy converter : coupled Kelvin probe and photoemission study of potassium oxide

François Morini, Emmanuel Dubois, J.F. Robillard, S. Monfray, T. Skotnicki

European Materials Research Society Spring Meeting, E-MRS Spring 2013, Symposium C - Advanced thermoelectrics : from materials to devices, 2013, Strasbourg, France. ⟨hal-00819702⟩