Enviaments recents

  • Solid state physicochemical properties and applications of organic and metallo-organic fullerene derivatives 

    Mitsari, Efstratia; Romanini, Michela; Manesh, Zachariah; Macovez, Roberto (2016)
    Article
    Accés obert
    We review the fundamental properties and main applications of organic derivatives and complexes of fullerenes in the solid-state form. We address in particular the structural properties, in terms of crystal structure, ...
  • Modeling of the Sub-Tg Relaxation Spectrum of Pd42.5Ni7.5Cu30P20 Metallic Glass 

    Liu, Chaoren; Pineda Soler, Eloi; Crespo Artiaga, Daniel; Qiao, Jichao (2016-03-17)
    Article
    Accés obert
    In this work we study the mechanical relaxation spectrum of Pd42.5Ni7.5Cu30P20 metallic glass. The effect of aging on the relaxation behavior is analyzed by measuring the internal friction during consecutive heating runs. ...
  • Relaxation dynamics of Fe55Cr10Mo14C15B6 metallic glass explored by mechanical spectroscopy and calorimetry measurements 

    Liu, Chaoren; Madinehei, Seyed Milad; Pineda Soler, Eloi; Crespo Artiaga, Daniel (2016-08-01)
    Article
    Accés obert
    In this work, the mechanical relaxation dynamics of Fe55Cr10Mo14C15B6 metallic glass is explored by mechanical spectroscopy. The temperature-dependent loss modulus E″(T) shows the features of β relaxation well below glass ...
  • Inverse barocaloric effects in ferroelectric BaTiO3 ceramics 

    Stern-Taulats, Enric; Lloveras Muntané, Pol Marcel; Barrio Casado, María del; Defay, Emmanuel; Egilmez, Mehmet; Planes Vila, Antoni; Tamarit Mur, José Luis; Mañosa Carrera, Lluis; Mathur, N.D.; Moya Raposo, Xavier (American Institute of Physics (AIP), 2016-09-19)
    Article
    Accés obert
    We use calorimetry to identify pressure-driven isothermal entropy changes in ceramic samples of the prototypical ferroelectric BaTiO3. Near the structural phase transitions at ~400 K (cubic-tetragonal) and ~280 K ...
  • On the positional and orientational order of water and methanol around indole: a study on the microscopic origin of solubility 

    Henao Aristizábal, Andrés; Johnston, Andrew J; Guàrdia Manuel, Elvira; McLain, Sylvia E.; Pardo Soto, Luis Carlos (2016-09-07)
    Article
    Accés restringit per política de l'editorial
    Although they are both highly polar liquids, there are a number of compounds, such as many pharmaceuticals, which show vastly different solubilities in methanol compared with water. From theories of the hydrophobic effect, ...
  • Ultrastable glasses portray similar behaviour to ordinary glasses at high pressure 

    Rodríguez-Tinoco, Cristian; Gonzalez Silveira, Marta; Barrio Casado, María del; Lloveras Muntané, Pol Marcel; Tamarit Mur, José Luis; Garden, Jean Luc; Rodríguez Viejo, Javier (Macmillan Publishers, 2016-10-03)
    Article
    Accés obert
    Pressure experiments provide a unique opportunity to unravel new insights into glass-forming liquids by exploring its effect on the dynamics of viscous liquids and on the evolution of the glass transition temperature. Here ...
  • Variable-range electron hopping, conductivity cross-over and space-charge relaxation in C60Br6 

    Manesh, Zachariah; Romanini, Michela; Zygouri, Panagiota; Gournis, Dimitrios; Tamarit Mur, José Luis; Barrio Casado, María del; Macovez, Roberto (2016-07-01)
    Article
    Accés restringit per política de l'editorial
    Dielectric spectroscopy is employed to probe the frequency-dependent conductivity and dipolar dielectric response of solid C60Br6. Below approximately 215 K, charge conduction is electronic and well described by Mott's ...
  • The structure of liquid water beyond the first hydration shell 

    Henao Aristizábal, Andrés; Busch, Sebastian; Guàrdia Manuel, Elvira; Tamarit Mur, José Luis; Pardo Soto, Luis Carlos (2016-06-22)
    Article
    Accés restringit per política de l'editorial
    To date there is a general consensus on the structure of the first coordination shells of liquid water, namely tetrahedral short range order of molecules. In contrast, little is known about the structure at longer distances ...
  • C60 solvate with (1,1,2)-trichloroethane: dynamic statistical disorder and mixed conformation 

    Mitsari, Efstratia; Romanini, Michela; Qureshi, Navid; Tamarit Mur, José Luis; Barrio Casado, María del; Macovez, Roberto (2016-05-27)
    Article
    Accés restringit per política de l'editorial
    We present a full characterization of the orientationally disordered cocrystal of C-60 with (1,1,2)-triChloroethane (C2H3Cl3), by means of X-ray diffraction, Raman spectroscopy, and broadband dielectric spectroscopy. Our ...
  • Structure and reorientational dynamics of 1-F-adamantane 

    Ben Hassine, Bacem; Negrier, Philippe; Romanini, Michela; Barrio Casado, María del; Macovez, Roberto; Kallel, A.; Mondieig, Denise; Tamarit Mur, José Luis (2016-03-17)
    Article
    Accés restringit per política de l'editorial
    The polymorphism and the dynamics of a simple rigid molecule (1-fluoro-adamantane) have been studied by means of X-ray powder diffraction and broadband dielectric spectroscopy. At temperatures below the melting point, the ...

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