1. Colossal reversible barocaloric effects in layered hybrid perovskite (C10H21NH3)2MnCl4 under low pressure near room temperature
- Author
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Universitat Politècnica de Catalunya. Departament de Física, Universitat Politècnica de Catalunya. GCM - Grup de Caracterització de Materials, Li, Junning, Barrio Casado, María del, Dunstan, David, Dixey, Richard, Lou, Xiaojie, Tamarit Mur, José Luis, Phillips, Anthony E., Lloveras Muntané, Pol Marcel, Universitat Politècnica de Catalunya. Departament de Física, Universitat Politècnica de Catalunya. GCM - Grup de Caracterització de Materials, Li, Junning, Barrio Casado, María del, Dunstan, David, Dixey, Richard, Lou, Xiaojie, Tamarit Mur, José Luis, Phillips, Anthony E., and Lloveras Muntané, Pol Marcel
- Abstract
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 transition characterized by different features: A strong disordering of the organic chains, a very large volume change, a very large sensitivity of the transition temperature to pressure and a small hysteresis. The obtained values are unprecedented among solid-state cooling materials at such low pressure changes and demonstrate that colossal effects can be obtained in compounds other than plastic crystals. The temperature-pressure phase diagram displays a triple point indicating enantiotropy at high pressure., Peer Reviewed, Postprint (published version)
- Published
- 2021