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Headlines 2011

November 2011

K. Katsuyoshi, D. L'Hôte, S. Nakamae, M. Konczykowski, V. Mosser
Le théorème de fluctuation-dissipation, reliant l'intensité des fluctuations d'une observable à la réponse à une sollicitation, est un principe vérifié pour tous les systèmes à l'équilibre ... More »

September 2011

Contact CEA : Pascal Boulanger
A decade after their first synthesis in the laboratory, carpets of aligned carbon nanotubes (CNTs) are being considered in many fields of applications (filtration membranes, passive and active electronic components, composite materials,..) combining CNTs’ individual ... More »

July 2011

( Version française) Stress corrosion - combined action of mechanical stress and corrosion by water from the surrounding atmosphere - is often the cause of crack propagation in glasses. A study by neutron reflectivity at the Laboratoire Léon Brillouin ... More »

April 2011

Jacques Jestin, Nicolas Jouault, Chloé Chevigny, François Boué, Laboratoire Léon Brillouin, CEA Saclay
One way to strengthen the mechanical properties of plastic materials is to add nanoparticles, forming that way a composite material. A detailed structural study by neutron scattering, coupled with mechanical tests, of polystyrene reinforced with silica particles has been performed at the ... More »
Measurement of the cardiac electrical activity allows following the heart dynamics. Usually measured with electrodes during an electrocardiogram (ECG), this activity can also be studied by monitoring the magnetic component, induced by the circulation of the heart electric currents. This is ... More »

February 2011

Jérôme Polesel Maris, José Moran Meza, Christophe Lubin, François Thoyer, Jacques Cousty
Les chercheurs du SPCSI viennent de mettre au point un nouveau microscope à sonde locale permettant la caractérisation fine des couplages mécano-électriques d’édifices moléculaires. Cet appareil, combinaison d'un STM et d'un AFM, est ... More »

January 2011

  One of the key research topic in the field of ultra-short laser pulses (femtosecond: 10-15 s) is the stabilization of the position of the carrier envelope (called CEP for "Carrier Envelope Phase"). An innovative device to control CEP fluctuations is offered by ... More »


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