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Multicaloric materials and effects

Published online by Cambridge University Press:  11 April 2018

Enric Stern-Taulats
Affiliation:
Department of Materials Science, University of Cambridge, UK; es749@cam.ac.uk
Teresa Castán
Affiliation:
Departament de Física de la Matèria Condensada, Universitat de Barcelona, Catalonia; teresa.castan@fmc.ub.edu
Lluís Mañosa
Affiliation:
Departament de Física de la Matèria Condensada, Universitat de Barcelona, Catalonia; lluis.manosa@fmc.ub.edu
Antoni Planes
Affiliation:
Departament de Física de la Matèria Condensada, Universitat de Barcelona, Catalonia; antoni.planes@fmc.ub.edu
Neil D. Mathur
Affiliation:
Department of Materials Science, University of Cambridge, UK; ndm12@cam.ac.uk
Xavier Moya
Affiliation:
Department of Materials Science, University of Cambridge, UK; xm212@cam.ac.uk
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Abstract

Multicaloric materials show thermal changes that can be driven simultaneously or sequentially by more than one type of external field. The use of more than one driving field can induce larger thermal changes, with smaller field magnitudes, over wider ranges of operating temperature, and can also eliminate hysteresis in one control parameter by transferring it to another. The thermodynamics behind multicaloric effects is well established, but only a small number of multicaloric materials have been experimentally studied to date. Here, we describe the fundamentals of multicaloric effects and discuss the performance of representative multicaloric materials. Exploiting multicaloric effects could aid the future development of cooling devices, where key challenges include energy efficiency and the span of the operating temperature.

Information

Type
Caloric Effects in Ferroic Materials
Copyright
Copyright © Materials Research Society 2018 

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