CEA |   |   |   |   |   |   | webmail : intra - extra |  Accès VPN-SSL | Contact | Français

Headlines 2009

December 2009

F .Onufrieva and P. Pfeuty, Laboratoire Léon Brillouin
Superconducting pairing and electronic anomalies induced by the spin collective mode in high Tc cuprate superconductors Discovered in 1986, superconductivity at high critical temperature remains today one of the great questions in solid state physics and material studies.
Scientists at the "Laboratoire de chimie et biologie des métaux" (CEA-CNRS-Université J.

November 2009

Making still smaller and less power consuming digital memories for mobile electronics? Scientists from CNRS and University Paris Sud XI (Laboratory of Solid State Physics, CNRS / Univ.
O.Bezencenet, A.Barbier, D.Bonamy, R.Belkhou (SOLEIL), P.Ohresser (SOLEIL)
With the advent of spin electronics (spintronics), it became particularly important to visualize and understand how magnetic domains form in magnetic structures.
- J. Kermorvant, Laboratoire des Solides Irradiés & Unité Mixte CNRS-Thalès (Palaiseau)- C.J. van der Beek, Laboratoire des Solides Irradiés, Ecole Polytechnique- Collaboration J. Briatico, B. Marcilhac, J.
Emmanuel Betranhandy, Nathalie Vast and Jelena Sjakste
The mechanical properties of boron carbide at high pressure, explained from first principles.

September 2009

F. Mallet, F. Ong, A. Palacios, F. Nguyen, P. Bertet, Denis Vion and D. Esteve
After the realization in 2002 of one of the first solid state quantum bits (qubits), scientists from the Quantronique IRAMIS-SPEC research group have performed a further step towards the realization of  an elementary quantum processor: the accurate and non destructive readout of such a qubit.
A. Cassimi, D. Hennecart, J. Rangama, T. Been,  D. Lelièvre, J.-M. Ramillon,  -  CIMAP, CEA-CNRS, Caen,T. Muranaka CEA-IRFU SaclayA. Leredde, X. Fléchard, LPCH. Shiromaru, J. Matsumoto,  K.-I.
D. Kopetzki, Y. Michina, T. Gustavsson, D. Carrière
Amphiphilic molecules have a hydrophilic head and a hydrophobic chain. Under certain conditions, they can self-organize into hollow spherical hollow vesicles with a surfactant bilayer enclosing an aqueous core, the overall diameter ranging from a few tens of nanometers to several microns.
D. Dulić, P. Lavie, S. Campidelli, A. Filoramo, collaboration : F. Pump et G. Cuniberti (Université de Dresde)
    Scientists at the Laboratory of Molecular Electronics (IRAMIS / SPEC) recently published a paper entitled  "Controlled Stability of Molecular Junctions" in the prestigious international journal Angewandte Chemie. The work done in collaboration with the group of Prof.

July 2009

Contact CEA : Hamed Merdji
In photography, the scattered light from an illuminated object is recorded with a detector and one get an image of it. If the image is formed with an objective, the optics imposes many limitations (resolution, aberrations ...).

June 2009

( Version française) We thought we knew transistor physics fairly well and in particular the millions of MOSFETs (Metal Oxyde Semi-conducteur Field Effect Transistor) which can be found at the core of our computers.

April 2009


March 2009


January 2009

P. Camy, A. Benayad, J.L. Doualan, V. Ménard, R. Moncorgé (IRAMIS-CIMAP/MIL)
A major development to improve high power laser chains,  is to achieve both higher yields and better tunability.
J.-P Dognon, C Clavaguéra, and P. Pyykko
J.-P Dognon  : CEA Saclay - IRAMIS/SCM (France) C Clavaguéra : Laboratoire des Mécanismes Reactionnels, Ecole Polytechnique, CNRS, 91128 Palaiseau (France) P. Pyykko : Department of Chemistry, University of Helsinki, Finland  


Retour en haut