Enviaments recents

  • Effect of nickel on point defects diffusion in Fe – Ni alloys 

    Anento Moreno, Napoleón; Serra Tort, Ana María; Osetsky, Yuri (2017-06)
    Article
    Accés restringit per política de l'editorial
    Iron-Nickel alloys are perspective alloys as nuclear energy structural materials because of their good radiation damage tolerance and mechanical properties. Understanding of experimentally observed features such as the ...
  • Observation of dynamic atom-atom correlation in liquid helium in real space 

    Dmowski, W.; Diallo, S. O.; Lokshin, K.; Ehlers, G.; Ferré Porta, Guillem; Boronat Medico, Jordi; Egami, T. (2017-05-04)
    Article
    Accés obert
    Liquid He-4 becomes superfluid and flows without resistance below temperature 2.17 K. Superfluidity has been a subject of intense studies and notable advances were made in elucidating the phenomenon by experiment and theory. ...
  • He-3 on preplated graphite 

    Gordillo Bargueño, Maria Carmen; Boronat Medico, Jordi (American Physical Society, 2016-10-18)
    Article
    Accés obert
    By using the diffusion Monte Carlo method, we obtained the full phase diagram of He3 on top of graphite preplated with a solid layer of He4. All the He4 atoms of the substrate were explicitly considered and allowed to move ...
  • Phase diagram of quasi-two-dimensional bosons in a laser-speckle potential 

    Astrakharchik, Grigori; Krutitsky, K.V.; Navez, Patrick (2013-06)
    Article
    Accés obert
    We have studied the phase diagram of a quasi-two-dimensional interacting Bose gas at zero temperature in the presence of random potential created by laser speckles. The superfluid fraction and the fraction of particles ...
  • Solvation dynamics in liquid water: III: energy fluxes and structural changes 

    Rey Oriol, Rosendo; Hynes, James T. (2017-02-16)
    Article
    Accés restringit per política de l'editorial
    In previous installments it has been shown how a detailed analysis of energy fluxes induced by electronic excitation of a solute can provide a quantitative understanding of the dominant molecular energy flow channels ...
  • Structure of halo and quasi-halo helium–helium–alkali trimers 

    Stipanovic, P.; Vranješ Markic, Leandra; Boronat Medico, Jordi (2017-05-01)
    Article
    Accés restringit per política de l'editorial
    We report a diffusion Monte Carlo study of A4He2 and A4He3He trimers’ structural properties, were A is one of the alkali atoms 6,7Li, 23Na, 39K, 85Rb or 133Cs. Some of them are in a pure halo state, characterized by large ...
  • Two-dimensional domain structures in Lithium Niobate via domain inversion with ultrafast light 

    Chen, Xin; Karpinski, Pawel; Shvedov, Vladlen; Wang, Bingxia; Trull Silvestre, José Francisco; Cojocaru, Crina; Boes, A.; Mitchell, A.; Krolikowski, Wieslaw; Sheng, Yan (2016)
    Article
    Accés obert
    Periodic inversion of ferroelectric domains is realized in a lithium niobate crystal by focused femtosecond near-infrared laser beam. One and two-dimensional domain patterns are fabricated. Quasi-phase matched frequency ...
  • Droplets of trapped quantum dipolar bosons 

    Macia Rey, Adrián; Sánchez Baena, Juan; Boronat Medico, Jordi; Mazzanti Castrillejo, Fernando Pablo (2016-11-10)
    Article
    Accés obert
    Strongly interacting systems of dipolar bosons in three dimensions confined by harmonic traps are analyzed using the exact path integral ground-state Monte Carlo method. By adding a repulsive two-body potential, we find a ...
  • Gapped spectrum in pair-superfluid bosons 

    Astrakharchik, Grigori; Zillich, Robert E.; Mazzanti Castrillejo, Fernando Pablo; Boronat Medico, Jordi (2016-12-22)
    Article
    Accés obert
    We study the ground state of a bilayer system of dipolar bosons with dipoles oriented by an external field perpendicularly to the two parallel planes. By decreasing the interlayer distance, for a fixed value of the strength ...
  • Structure and dynamics of water at carbon-based interfaces 

    Martí Rabassa, Jordi; Calero, Carles; Franzese, Giancarlo (2017-03-21)
    Article
    Accés obert
    Water structure and dynamics are affected by the presence of a nearby interface. Here, first we review recent results by molecular dynamics simulations about the effect of different carbon-based materials, including ...

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