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Giant Electrocaloric Strength in Single-Crystal BaTiO3

Authors

  • Xavier Moya,

    1. Department of Materials Science, University of Cambridge, Cambridge, CB2 3QZ, UK
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  • Enric Stern-Taulats,

    1. Facultat de Física, Departament d'Estructura i Constituents de la Matèria, Universitat de Barcelona, Diagonal 647, E-08028 Barcelona, Catalonia, Spain
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  • Sam Crossley,

    1. Department of Materials Science, University of Cambridge, Cambridge, CB2 3QZ, UK
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  • David González-Alonso,

    1. Facultat de Física, Departament d'Estructura i Constituents de la Matèria, Universitat de Barcelona, Diagonal 647, E-08028 Barcelona, Catalonia, Spain
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  • Sohini Kar-Narayan,

    1. Department of Materials Science, University of Cambridge, Cambridge, CB2 3QZ, UK
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  • Antoni Planes,

    1. Facultat de Física, Departament d'Estructura i Constituents de la Matèria, Universitat de Barcelona, Diagonal 647, E-08028 Barcelona, Catalonia, Spain
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  • Lluís Mañosa,

    Corresponding author
    1. Facultat de Física, Departament d'Estructura i Constituents de la Matèria, Universitat de Barcelona, Diagonal 647, E-08028 Barcelona, Catalonia, Spain
    • Facultat de Física, Departament d'Estructura i Constituents de la Matèria, Universitat de Barcelona, Diagonal 647, E-08028 Barcelona, Catalonia, Spain
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  • Neil D. Mathur

    Corresponding author
    1. Department of Materials Science, University of Cambridge, Cambridge, CB2 3QZ, UK
    • Department of Materials Science, University of Cambridge, Cambridge, CB2 3QZ, UK.
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Abstract

The very sharp first-order phase transition in single-crystal BaTiO3 permits thermal changes to be driven by very small electric fields. The resulting giant electrocaloric strength could be exploited in future cooling devices that operate at high frequency.

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