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Ara es mostren els items 1-15 de 15

    • Barocaloric effects at first-order phase transitions 

      Aznar Luque, Araceli (Universitat Politècnica de Catalunya, 2021-04-15)
      Tesi
      Accés obert
      Current refrigeration devices, based on vapour-compression cycles, employ refrigerants such as HFCs, which exhibit a global warming potential a thousand times higher than the one produced by CO2,. Furthermore, the increasing ...

    • Barocaloric properties of quaternary Mn3(Zn,In)N for room-temperature refrigeration applications 

      Boldrin, David; Mendive-Tapia, Eduardo; Zemen, Jan; Staunton, Julie b.; Aznar Luque, Araceli; Tamarit Mur, José Luis; Lloveras Muntané, Pol Marcel; Moya Raposo, Xavier; Cohen, Leslie (American Physical Society (APS), 2021-10-01)
      Article
      Accés obert
      The magnetically frustrated manganese nitride antiperovskite family displays significant changes of entropy under hydrostatic pressure that can be useful for the emerging field of barocaloric cooling. Here we show that ...

    • Barocaloric response of plastic crystal 2-methyl-2-nitro-1-propanol across and far from the solid-solid phase transition 

      Salvatori, Alejandro; Barrio Casado, María del; Negrier, Philippe; Massip, Stephane; Romanini, Michela; Aznar Luque, Araceli; Lloveras Muntané, Pol Marcel; Tamarit Mur, José Luis (Institute of Physics (IOP), 2023-10-25)
      Article
      Accés obert
      Plastic crystals have emerged as benchmark barocaloric (BC) materials for potential solid-state cooling and heating applications due to huge isothermal entropy changes and adiabatic temperature changes driven by pressure. ...

    • Colossal barocaloric effects in adamantane derivatives for thermal management 

      Salvatori, Alejandro; Negrier, Philippe; Aznar Luque, Araceli; Barrio Casado, María del; Tamarit Mur, José Luis; Lloveras Muntané, Pol Marcel (American Institute of Physics (AIP), 2022-11-16)
      Article
      Accés obert
      Plastic crystals are currently attracting interest because their solid-state caloric functionality could be used to tackle climate change in two critical areas: (i) more environmentally friendly cooling and heating driven ...

    • 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
      Accés obert
      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 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
      Accés obert
      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
      Accés obert
      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
      Accés obert
      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 over a wide temperature range in the superionic conductor AgI 

      Aznar Luque, Araceli; LLoveras, Pol; Romanini, Michela; Barrio Casado, María del; Tamarit Mur, José Luis; Cazorla Silva, Claudio; Errandonea Ponce, Daniel; Mathur, N.D.; Planes, Antoni; Moya, Xavier; Mañosa Carrera, Lluis (2017-11-29)
      Article
      Accés obert
      Current interest in barocaloric effects has been stimulated by the discovery that these pressure-driven thermal changes can be giant near ferroic phase transitions in materials that display magnetic or electrical order. ...

    • Heterogeneous or Homogeneous dynamics? : A Bayesian model selection problem 

      Aznar Luque, Araceli (Universitat Politècnica de Catalunya / Universitat de Barcelona, 2017-10)
      Projecte Final de Màster Oficial
      Accés restringit per acord de confidencialitat
      Realitzat a/amb:   Universitat de Barcelona

    • Melting of orientational degrees of freedom 

      Aznar Luque, Araceli; Lloveras Muntané, Pol Marcel; Barrio Casado, María del; Tamarit Mur, José Luis (2017-05)
      Article
      Accés obert
      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 ...

    • Multisite exchange-enhanced barocaloric response in Mn3NiN 

      Boldrin, David; Mendive-Tapia, Eduardo; Zemen, Jan; Staunton, Julie B.; 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
      Accés obert

    • 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
      Accés obert
      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 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
      Accés obert
      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 colossal barocaloric effects near room temperature in 1-X-adamantane (X=Cl, Br) plastic crystals 

      Aznar Luque, Araceli; Negrier, Philippe; Planes Vila, Antoni; Manosa, L; Stern-Taulats, Enric; Moya Raposo, Xavier; Barrio Casado, María del; Tamarit Mur, José Luis; Lloveras Muntané, Pol Marcel (Elsevier, 2021-06)
      Article
      Accés obert
      Plastic crystals undergo phase transitions with unusually large volume and entropy changes related to strong molecular orientational disordering. These features have led to a resurgent interest in these materials because ...