Now showing items 1-20 of 32

    • A ferroelastic film at the edge of chaos 

      Lloveras Muntané, Pol Marcel (2019-08-22)
      External research report
      Open Access
    • 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
      Open Access
    • 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
    • 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 ...
    • Colossal barocaloric effects near room temperature in plastic crystals of neopentylglycol 

      Lloveras Muntané, Pol Marcel; Aznar Luque, Araceli; Barrio Casado, María del; Negrier, Philippe; Popescu, C.; Planes Vila, Antoni; Mañosa Carrera, Lluis; Stern Taulats, Enric; Avramenko, Alex; Mathur, N.D.; Moya Raposo, Xavier; Tamarit Mur, José Luis (2019-04-18)
      Article
      Open Access
      There is currently great interest in replacing the harmful volatile hydrofluorocarbon fluids used in refrigeration and air-conditioning with solid materials that display magnetocaloric, electrocaloric or mechanocaloric ...
    • Colossal reversible barocaloric effects in layered hybrid perovskite (C10H21NH3)2MnCl4 under low pressure near room temperature 

      Li, Junning; Barrio Casado, María del; Dunstan, David; Dixey, Richard; Lou, Xiaojie; Tamarit Mur, José Luis; Phillips, Anthony E.; Lloveras Muntané, Pol Marcel (2021-11-10)
      Article
      Open Access
      Barocaloric effects in a layered hybrid organic–inorganic compound, (C10H21NH3)2MnCl4, that are reversible and colossal under pressure changes below 0.1 GPa are reported. This barocaloric performance originates in a phase ...
    • 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 and reversible barocaloric effect in trinuclear spin-crossover complex Fe3(bntrz)6(tcnset)6 

      Romanini, Michela; Lloveras Muntané, Pol Marcel; Barrio Casado, María del; Aznar Luque, Araceli; Gracia Condal, Adrià; Emre, Baris; Tamarit Mur, José Luis; Planes Vila, Antoni; Manosa, L (2021-03)
      Article
      Open Access
      A giant barocaloric effect (BCE) in a molecular material Fe3(bntrz)6(tcnset)6 (FBT) is reported, where bntrz = 4-(benzyl)-1,2,4-triazole and tcnset = 1,1,3,3-tetracyano-2-thioethylepropenide. The crystal structure of FBT ...
    • Giant and reversible inverse barocaloric effects near room temperature in ferromagnetic MnCoGeB0.03 

      Aznar Luque, Araceli; Lloveras Muntané, Pol Marcel; Kim, Jiyeob; Stern Taulats, Enric; Barrio Casado, María del; Tamarit Mur, José Luis; Mathur, N.D.; Moya Raposo, Xavier (2019-09-13)
      Article
      Open Access
      Hydrostatic pressure represents an inexpensive and practical method of driving caloric effects in brittle magnetocaloric materials, which display first-order magnetostructural phase transitions whose large latent heats are ...
    • Giant barocaloric effect in all-d-metal Heusler shape memory alloys 

      Aznar Luque, Araceli; Gracia Condal, Adrià; Planes Vila, Antoni; Lloveras Muntané, Pol Marcel; Barrio Casado, María del; Tamarit Mur, José Luis; Xiong, Wenxin; Cong, Daoyong; Popescu, C.; Mañosa Carrera, Lluis (American Physical Society (APS), 2019-04-16)
      Article
      Open Access
      We have studied the barocaloric properties associated with the martensitic transition of a shape memory Heulser alloy Ni50Mn31.5Ti18.5 which is composed of all-d-metal elements. The composition of the sample has been ...
    • 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 ...
    • Giant reversible barocaloric response of (MnNiSi)(1-x)(FeCoGe)(x) (x=0.39, 0.40, 0.41) 

      Lloveras Muntané, Pol Marcel; Tapas, Samanta; Barrio Casado, María del; Dubenko, Igor; Ali, Naushad; Tamarit Mur, José Luis; Stadler, Shane (American Institute of Physics (AIP), 2019-06-01)
      Article
      Open Access
      MnNiSi-based alloys and isostructural systems have traditionally demonstrated impressive magnetocaloric properties near room temperature associated with a highly tunable first-order magnetostructural transition that involves ...
    • 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 Fernando; 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 ...