Now showing items 1-12 of 12

    • 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 ...
    • 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 ...
    • 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 ...
    • 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 ...
    • 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 ...
    • 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 ...
    • Reversible and irreversible colossal barocaloric effects in plastic crystals 

      Aznar Luque, Araceli; Lloveras Muntané, Pol Marcel; Barrio Casado, María del; Negrier, Philippe; Planes Vila, Antoni; Mañosa Carrera, Lluis; Mathur, N.D.; Moya Raposo, Xavier; Tamarit Mur, José Luis (Royal Society of Chemistry (RSC), 2020)
      Article
      Open Access
      The extremely large latent heat exchanged in phase transitions involving strong molecular orientational disordering has recently led to the proposal of plastic crystals as a feasible solution for solid-state barocaloric ...
    • Reversible barocaloric effects over a large temperature span in fullerite C60 

      Li, Junning; Dunstan, David; Lou, Xiaojie; Planes Vila, Antoni; Manosa, L; Barrio Casado, María del; Tamarit Mur, José Luis; Lloveras Muntané, Pol Marcel (Royal Society of Chemistry (RSC), 2020-07-31)
      Article
      Restricted access - publisher's policy
      Solid-state cooling methods based on field-driven first-order phase transitions are often limited by significant hysteresis and small temperature span, which increase the input work required to drive the cooling cycle ...
    • 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 ...