constantin, Loic Fan, Lisha Zou, Qiming THOMAS, Benjamin Roger, Jérôme Heinz, Jean-Marc Debiemme-Chouvy, Catherine Mortainge, Bruno Lu, Yong Feng Silvain, Jean-François
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The lack of robust interphases between carbon and most metals prevent the exploration of the full scope potential of carbon-based metal matrix composites. Here, we demonstrated a scalable and straightforward way to produce strong interphase between copper (Cu) and carbon fibers (CFs) by designing a tailored titanium oxide-carbide coating (TiOy-TiCx...

Valori, Valentina Innocenti, Alessio Dubrulle, Bérengère Chibbaro, Sergio

We apply the weak formalism on the Boussinesq equations to characterize scaling properties of the mean and the standard deviation of the potential, kinetic and viscous energy fluxes in very well-resolved numerical simulations. The local Bolgiano-Oboukhov (BO) length is investigated and it is found that its value may change by an order of magnitude ...

Roulleau, Xavier

We construct special conic configurations from some point configurations which are the singularities of the dual of a quartic curve.

Hamouda, W. Pancotti, A. Lubin, C. Tortech, L. Richter, C. Mikolajick, T. Schroeder, U. Barrett, N.

Ferroelectric hafnia-based thin films are promising candidates for emerging high-density embedded nonvolatile memory technologies, thanks to their compatibility with silicon technology and the possibility of 3D integration. The electrode–ferroelectric interface and the crystallization annealing temperature may play an important role in such memory ...

Roulleau, Xavier

Nikulin and Vinberg proved that there are only a finite number of lattices of rank $\geq 3$ that are the N\'eron-Severi group of projective K3 surfaces with a finite automorphism group. The aim of this paper is to provide a more geometric description of such K3 surfaces $X$, when the fundamental domain $\mathcal{F}_{X}$ of their Weyl group in $\mat...

Cahen, Sébastien El Hajj, Inass Speyer, Lucie Berger, Pascal Medjahdi, Ghouti Lagrange, Philippe Lamura, Gianrico Hérold, C.

Thanks to its lamellar structure, graphite can host various chemical species between its interplanar spaces to form Graphite Intercalation Compounds (GIC). Intercalation of metals into graphite can lead to remarkable modifications of the physical properties of the sample with respect to pristine graphite as for instance superconductivity. In this p...

Elsawy, Mahmoud M. R. Hassan, Karim Boutami, Salim Lanteri, Stéphane

We present rigorous modeling and optimal design for 3D graded index photonic lens at the telecommunication wavelnegth. Based on our numerical results, the efficiency of the optimized designs can reach 87%. In this work, we use a global optimization method based on statistical learning in order to enhance the efficiency of a graded index photonic me...

Ménard, Corentin Robert, Sebastien Lesselier, Dominique Miorelli, Roberto

The ability of an adaptive ultrasonic imaging procedure to inspectinside unknown anisotropic nuclear steels, such as V-shape welds or cladded components, is investigated herein. Theoptimization scheme combines the Total Focusing Method (TFM) imaging algorithm with a customizedgradient ascent method in order to improve both the quality and reliabili...

Sirunyan, Albert M Tumasyan, Armen Adam, Wolfgang Ambrogi, Federico Bergauer, Thomas Dragicevic, Marko Erö, Janos Escalante Del Valle, Alberto Flechl, Martin Fruehwirth, Rudolf
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A study of excited $\Lambda_\mathrm{b}^0$ baryons is reported, based on a data sample collected in 2016-2018 with the CMS detector at the LHC in proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of up to 140 fb$^{-1}$. The existence of four excited $\Lambda_\mathrm{b}^0$ states: $\Lambda_\mathr...

Barausse, Enrico Berti, Emanuele Hertog, Thomas Hughes, Scott A. Jetzer, Philippe Pani, Paolo Sotiriou, Thomas P. Tamanini, Nicola Witek, Helvi Yagi, Kent
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We provide an updated assessment of the fundamental physics potential of LISA. Given the very broad range of topics that might be relevant to LISA, we present here a sample of what we view as particularly promising directions, based in part on the current research interests of the LISA scientific community in the area of fundamental physics. We org...