Enviaments recents

  • Distinctive dielectric properties of nematic liquid crystal dimers 

    Sebastian Ugarteche, Nerea; Robles Hernández, Beatriz; Díez Berart, Sergio; Salud Puig, Josep; Luckhurst, G.R.; Dunmur, D. A.; López Pérez, David Orencio; de la Fuente, Maria del Rosario (2017-01-01)
    Article
    Accés restringit per política de l'editorial
    We provide an overview of the effect of the molecular structure on the dielectric properties of dimers exhibiting nematic and twist-bend nematic phases with special focus on how the conformational distribution changes are ...
  • Explosion of white dwarfs harboring hybrid CONe cores 

    Bravo Guil, Eduardo; Gil Pons, Pilar; Gutierrez Cabello, Jorge Luis; Doherty, Carolyn L. (EDP Sciences, 2016-04-12)
    Article
    Accés obert
    Recently, it has been found that off-center carbon burning in a subset of intermediate-mass stars does not propagate all the way to the center, resulting in a class of hybrid CONe cores. The implications of a significant ...
  • Gamma-ray emission from SN2014J near maximum optical light 

    Isern Vilaboy, Jordi; Jean, Pierre; Bravo Guil, Eduardo; Knodlseder, Jurgen; Lebrun, François; Churazov, Eugene; Sunyaev, Rashid; Domingo, Alberto; Badenes, Carles; Hartmann, Dieter, H; Hoeflich, Peter; Renaud, Matthieu; Soldi, Simona; Elias Rosa, Nancy; Hernanz Carbó, Margarita; Domínguez Aguilera, Inmaculada; García Senz, Domingo; Lichti, G.G.; Vedrenne, G.; Von Ballmoos, Peter (EDP Sciences, 2016-04)
    Article
    Accés obert
    Context. The optical light curve of Type Ia supernovae (SNIa) is powered by thermalized gamma-rays produced by the decay of 56Ni and 56Co, the main radioactive isotopes synthesized by the thermonuclear explosion of a C/O ...
  • Gamma rays from Type Ia supernova SN 2014j 

    Churazov, Eugene; Sunyaev, Rashid; Isern Vilaboy, Jordi; Bikmaev, I; Bravo Guil, Eduardo; Chugai, Nikolai; Grebenev, Sergei; Jean, Pierre; Knodlseder, Jurgen; Lebrun, François; Kuulkers, Eric (2015-10-08)
    Article
    Accés obert
    The whole set of INTEGRAL observations of Type Ia supernova SN 2014J, covering the period 19–162 days after the explosion, has been analyzed. For spectral fitting the data are split into early and late periods covering ...
  • A Chandrasekhar mass progenitor for the type Ia supernova remnant 3C 397 from the enhanced abundances of nickel and manganese 

    Yamaguchi, H; Badenes, Carles; Foster, Adam; Bravo Guil, Eduardo; Williams, Brian; Maeda, Keichi; Nobukawa, Masayoshi; Eriksen, Kristoffer; Brickhouse, Nancy; Petre, Robert; Koyama, Katsuyi (2015-03-12)
    Article
    Accés restringit per política de l'editorial
    Despite decades of intense efforts, many fundamental aspects of Type Ia supernovae (SNe Ia) remain elusive. One of the major open questions is whether the mass of an exploding white dwarf (WD) is close to the Chandrasekhar ...
  • Dielectric, calorimetric and mesophase properties of 1 ''-(2 ',4-difluorobiphenyl-4 '-yloxy)-9 ''-(4-cyano-biphenyl-4 '-yloxy) nonane: an odd liquid crystal dimer with a monotropic mesophase having the characteristics of a twist-bend nematic phase 

    Sebastian Ugarteche, Nerea; López Pérez, David Orencio; Robles Hernández, Beatriz; de la Fuente, M.R.; Salud Puig, Josep; Pérez Jubindo, M.A.; Dunmur, D.A.; Luckhurst, G.R.; Jackson, D. J. B. (2014-10-21)
    Article
    Accés restringit per política de l'editorial
    This paper reports a novel liquid crystal phase having the characteristics of a twist-bend nematic phase formed by a non-symmetric ether-linked liquid crystal dimer. The dimer 1 ''-(2',4-difluorobiphenyl-4'-yloxy)-9 ...
  • Bent-rod liquid crystal dimers: synthesis and mesomorphic properties 

    Sebastian Ugarteche, Nerea; Gimeno, Nelida; Vergara, Jorge; López Pérez, David Orencio; Serrano, Jose Luis; Folcia, Cesar; de la Fuente, M.R.; Ros, M. Blanca (Royal Society of Chemistry, 2014-01-01)
    Article
    Accés restringit per política de l'editorial
    The synthesis and characterization of three bent-rod dimers are reported. Very long flexible spacers that include methylene units and either a phenyl ring or a triazole moiety as connecting structures join the bent-and ...
  • Dispersion of gamma-alumina nano-sized spherical particles in a calamitic liquid Crystal. Study and optimization of the confinement effects 

    Díez Berart, Sergio; López Pérez, David Orencio; Sebastian Ugarteche, Nerea; de la Fuente, M.R.; Salud Puig, Josep; Robles Hernández, Beatriz; Pérez Jubindo, M.A. (2014-03-01)
    Article
    Accés obert
    We report an experimental study on confined systems formed by butyloxybenzylidene octylaniline liquid crystal (4O.8) + gamma-alumina nanoparticles. The effects of the confinement in the thermal and dielectric properties ...
  • Distortion-sensitive insight into the pretransitional behavior of 4-n-octyloxy-4 '-cyanobiphenyl (8OCB) 

    Rzoska, Sylwester J.; Drozd-Rzoska, Aleksandra; Mukherjee, Prabir K; López Pérez, David Orencio; Martínez García, Julio Cesar (Institute Of Physics Publishing Ltd, 2013-06)
    Article
    Accés restringit per política de l'editorial
    Results of studies of the static and dynamic dielectric properties in rod-like 4-n-octyloxy-40-cyanobiphenyl (8OCB) with isotropic (I)–nematic (N)–smectic A (SmA)–crystal (Cr) mesomorphism, combined with measurements of ...
  • Liquid-crystalline hybrid materials based on (60) fullerene and bent-core structures 

    Martín, Nazario; Sánchez, Luis; Vergara, Jorge; Barberá, Joaquín; Serrano, José Luis; Ros, M. Blanca; Sebastián, Nerea; de la Fuente, Rosario; López Pérez, David Orencio; Fernández, Gustavo (2011-12-23)
    Article
    Accés restringit per política de l'editorial
    What a core-ker! By the appropriate combination of promesogenic bent-core structures and the C60 unit, lamellar polar liquid-crystal phases were induced (see scheme). The supramolecular organization of the functional ...

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