Now showing items 1-20 of 22

  • A thermodynamically consistent phase diagram of a trimorphic pharmaceutical, L-tyrosine ethyl ester, based on limited experimental data 

    Nicolaï, Béatrice; Barrio Casado, María del; Lloveras Muntané, Pol Marcel; Polian, Alain; Itié, Jean-Paul; Tamarit Mur, José Luis; Rietveld, Ivo B. (Royal Society of Chemistry (RSC), 2018-08-29)
    Article
    Restricted access - publisher's policy
  • Barocaloric and magnetocaloric effects in Fe49Rh51 

    Stern-Taulats, E.; Planes, Antoni; Lloveras Muntané, Pol Marcel; Barrio Casado, María del; Tamarit Mur, José Luis; Pramanick, Sabyasachi; Majumdar, Subham; Frontera, Carlos; Mañosa, Lluís (2014-06-06)
    Article
    Restricted access - publisher's policy
    We report on calorimetry under applied hydrostatic pressure and magnetic field at the antiferromagnetic-ferromagnetic (AFM/FM) transition of Fe49Rh51. Results demonstrate the existence of a giant barocaloric effect in this ...
  • Barocaloric and magnetocaloric effects in (MnNiSi)1-x(FeCoGe)x 

    Tapas, Samanta; Lloveras Muntané, Pol Marcel; Us Saleheen, Ahmad; Lepkowski, Daniel L.; Kramer, Emily; Dubenko, Igor; Adams, Philip W.; Young, David P.; Barrio Casado, María del; Tamarit Mur, José Luis; Ali, Naushad; Stadler, Shane (2018-01-11)
    Article
    Open Access
  • Criticality in the slowed-down boiling crisis at zero gravity 

    Charignon, Thomas; Lloveras Muntané, Pol Marcel; Chatain, Denis; Truskinovsky, Lev; Vives, Eduard; Beysens, Daniel; Nikolayev, Vadim (2015-05-12)
    Article
    Restricted access - publisher's policy
    Boiling crisis is a transition between nucleate and film boiling. It occurs at a threshold value of the heat flux from the heater called CHF (critical heat flux). Usually, boiling crisis studies are hindered by the high ...
  • Giant barocaloric effects at low pressure in ferrielectric ammonium sulphate 

    Lloveras Muntané, Pol Marcel; Stern Taulats, Enric; Barrio Casado, María del; Tamarit Mur, José Luis; Crossley, Sam; Li, Wei; Pomjakushin, Vladimir; Planes Vila, Antoni; Mañosa Carrera, Lluis; Mathur, N.D.; Moya, Xavier (2015-11-01)
    Article
    Open Access
    Caloric effects are currently under intense study due to the prospect of environment-friendly cooling applications. Most of the research is centred on large magnetocaloric effects and large electrocaloric effects, but the ...
  • Ginzburg-Landau modelling of precursor nanoscale textures in ferroelastic materials 

    Planes, Antoni; Lloveras Muntané, Pol Marcel; Castán, Teresa; Saxena, Avadh; Porta, Marcel (2012-11)
    Article
    Restricted access - publisher's policy
    A Ginzburg–Landau free-energy model is proposed to study spatially inhomogeneous states that often occur as precursors of ferroelastic/martensitic transitions. Disorder is included in the harmonic coefficient of the ...
  • Glassy behavior in martensites: Interplay between elastic anisotropy and disorder in zero-field-cooling/field-cooling simulation experiments 

    Lloveras Muntané, Pol Marcel; Castán, Teresa; Porta, Marcel; Planes, Antoni; Saxena, Avadh (2009-08-17)
    Article
    Restricted access - publisher's policy
    We study the combined effect of elastic anisotropy and disorder on the microstructure and thermodynamic behavior in alloys undergoing a martensitic transformation. Within a Ginzburg-Landau free-energy framework we find the ...
  • Influence of elastic anisotropy on structural nanoscale textures 

    Lloveras Muntané, Pol Marcel; Castán, Teresa; Porta, Marcel; Planes, Antoni; Saxena, Avadh (2008-04-25)
    Article
    Restricted access - publisher's policy
    We study the influence of elastic anisotropy on nanoscale precursor textures that exist in some shapememory alloys and show that tweed occurs in the limit of high elastic anisotropy while a nanocluster phase-separated state ...
  • Intermittent dynamics in externally driven ferroelastics and strain glasses 

    Porta, Marcel; Castán Vidal, Teresa; Lloveras Muntané, Pol Marcel; Saxena, Avadh; Planes Vila, Antoni (American Institute of Physics (AIP), 2018-09-28)
    Article
    Open Access
  • 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
    Open Access
    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 ...
  • Melting of orientational degrees of freedom 

    Aznar Luque, Araceli; Lloveras Muntané, Pol Marcel; Barrio Casado, María del; Tamarit Mur, José Luis (2017-05)
    Article
    Open Access
    We use calorimetry and dilatometry under hydrostatic pressure, X-ray powder diffraction and available literature data in a series of composition-related orientationally disordered (plastic) crystals to characterize both ...
  • Modelling magnetostructural textures in magnetic shape-memory alloys: Strain and magnetic glass behaviour 

    Lloveras Muntané, Pol Marcel; Touchagues, Gilles; Castán, Teresa; Lookman, Turab; Porta, Marcela; Saxena, Avadh; Planes Vila, Antoni (2014-10-01)
    Article
    Restricted access - publisher's policy
    In this paper, we propose a model that combines a Landau free energy part and a micromagnetic free energy part aimed at describing a magnetostructural multiferroic. We show that in the limit of high-elastic anisotropy and ...
  • Modelling shape-memory effects in ferromagnetic alloys 

    Gebbia, Jonathan F.; Lloveras Muntané, Pol Marcel; Planes Vila, Antoni; Castán Vidal, Teresa; Saxena, Avadh (Springer, 2015-07-21)
    Article
    Restricted access - publisher's policy
    We develop a combined Ginzburg–Landau/micromagnetic model dealing with conventional and magnetic shape-memory properties in ferromagnetic shape-memory materials. The free energy of the system is written as the sum of ...
  • Multiferroic and related hysteretic behavior in ferromagnetic shape memory alloys 

    Gebbia, Jonathan Fernando; Castán Vidal, Teresa; Lloveras Muntané, Pol Marcel; Porta Tena, Marcel; Saxena, Avadh; Planes Vila, Antoni (2017-08-29)
    Article
    Open Access
    We combine a Ginzburg–Landau model for a ferroelastic transition with the theory of micromagnetism to study the magnetostructural behavior leading to multicaloric effects in ferromagnetic shape memory alloys. We analyze ...
  • Multisite exchange-enhanced barocaloric response in Mn3NiN 

    Boldrin, David; Mendive-Tapia, Eduardo; Zemen, Jan; B. Staunton, Julie; Hansen, Thomas C.; Aznar Luque, Araceli; Tamarit Mur, José Luis; Barrio Casado, María del; Lloveras Muntané, Pol Marcel; Kim, Jiyeob; Moya, Xavier; Cohen, Leslie (2018-11-28)
    Article
    Open Access
  • Polymorphism of spironolactone: An unprecedented case of monotropy turning to enantiotropy with a huge difference in the melting temperatures 

    Rietveld, Ivo B.; Barrio Casado, María del; Lloveras Muntané, Pol Marcel; Céolin, René; Tamarit Mur, José Luis (2018-09-25)
    Article
    Open Access
  • Relationship between the two-component system 1-Br-adamantane + 1-Cl-adamantane and the high-pressure properties of the pure components 

    Barrio Casado, María del; Levit Valenzuela, Rafael; Lloveras Muntané, Pol Marcel; Aznar Luque, Araceli; Negrier, Philippe; Mondieig, Denise; Tamarit Mur, José Luis (2018-03-15)
    Article
    Open Access
    The temperature-composition phase diagram of the two-component system 1-Br-adamantane and 1-Cl-adamantane has been determined by means of thermal analysis techniques and X-ray powder diffraction from the low-temperature ...
  • Reversible adiabatic temperature changes at the magnetocaloric and barocaloric effects in Fe49Rh51 

    Stern-Taulats, Enric; Gracia-Condal, Adrià; Planes Vila, Antoni; Lloveras Muntané, Pol Marcel; Barrio Casado, María del; Tamarit Mur, José Luis; Pramanick, Sabyasachi; Majumdar, Subham; Mañosa Carrera, Lluis (2015-10-12)
    Article
    Open Access
    We report on the adiabatic temperature changes (Delta T) associated with the magnetocaloric and barocaloric effects in a Fe49Rh51 alloy, For the magnetocaloric effect, data derived from entropy curves are compared to direct ...
  • Spatially correlated disorder in self-organized precursor magnetic nanostructures 

    Porta, Marcel; Castán, Teresa; Lloveras Muntané, Pol Marcel; Planes, Antoni; Saxena, Avadh (2007-08-20)
    Article
    Restricted access - publisher's policy
    We study the scaling behavior of the characteristic length of precursor magnetic nanostructures above the Curie temperature with the correlation length of quenched-in disorder. We found that the modulation length of the ...
  • Tailoring barocaloric and magnetocaloric properties in low-hysteresis magnetic shape memory alloys 

    Stern Taulats, Enric; Planes Vila, Antoni; Lloveras Muntané, Pol Marcel; Tamarit Mur, José Luis; Barrio Casado, María del; Pramanick, Sabyasachi; Majumdar, Subham; Yuce, Suheyla; Emre, Baris; Frontera Beccaria, Carlos; Mañosa Carrera, Lluis (2015-09-01)
    Article
    Open Access
    We report on the barocaloric and magnetocaloric effects in a series of low-hysteresis Ni-Mn-In magnetic shape memory alloys. We show that the behaviour exhibited by several quantities that characterise these caloric effects ...