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Affichage de 14211 à 14220 sur 16261

Article dans une revue

Dimensionality-dependent self energy corrections and exchange-correlation potential in semiconductor nanostructures

Christophe Delerue, Guy Allan, Michel Lannoo

We study the quasiparticle gap in semiconductor nanostructures versus dimensionality and compare it to the value obtained in the local density approximation. We first develop general arguments based on the GW approach which we then substantiate numerically by a tight binding version of this theory…

Physical Review Letters, 2003, 90, pp.076803/1-4. ⟨10.1103/PhysRevLett.90.076803⟩. ⟨hal-00146609⟩

Communication dans un congrès

Microelectromechanical variable-bandwidth if frequency filters with tunable electrostatical coupling spring

Dimitri Galayko, Andreas Kaiser, Lionel Buchaillot, Dominique Collard, Chantal Combi

This paper describes the theory, design and test of a novel architecture of highly-selective micromechanical filters employing electrostatically coupled resonators with floating or biased coupling electrodes. This original method avoids the use of mechanical coupling springs thus extending the…

Micro Electro Mechanical Systems, 2003. MEMS-03 Kyoto. IEEE The Sixteenth Annual International Conference on, Jan 2003, Kyoto, Japan. ⟨10.1109/MEMSYS.2003.1189709⟩. ⟨hal-01522205⟩

Communication dans un congrès

Detection of chemical damage in concrete cover using ultrasound

F. Buyle-Bodin, S. Ould Naffa, M. Goueygou, Bogdan Piwakowski

Proceedings of the 2003 International Conference on Performance of Construction Materials in the New Millennium, ICPCM 2003, 2003, Cairo, Egypt. ⟨hal-00250183⟩

Chapitre d'ouvrage

Characterization of surface cracks in metals by microwave techniques

D. Glay, T. Lasri

GREEN R.E. JR., DJORDJEVIC B.B., HENTSCHEL M.P. Nondestructive characterization of materials XI, Springer Verlag, pp.345-352, 2003. ⟨hal-00132310⟩

Article dans une revue

Pyroactive sensitive element of position IR-detector based on thin film PZT-Si structures

S.L. Bravina, Eric Cattan, E. Fribourg-Blanc, N.V. Morozovsky, Denis Remiens

Ferroelectrics, 2003, 288, pp.79-91. ⟨hal-00146479⟩

Communication dans un congrès

New high performance evanescent coupled waveguide UTC photodiodes for >40 Gb/s applications

Mohand Achouche, Vincent Magnin, Joseph Harari, J.L. Gentner, F. Delarge, Estelle Derouin, Christophe Jany, David Carpentier, F. Barthe, Stéphane Demiguel, Didier Decoster

ECOC2003, Sep 2003, Rimini, Italy. pp.1048-1049. ⟨hal-00146557⟩