Barocaloric properties of quaternary <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>Mn</mi><mn>3</mn></msub><mo>(</mo><mi>Zn</mi><mo>,</mo><mi>In</mi><mo>)</mo><mi mathvariant="normal">N</mi></math> for room-temperature refrigeration applications

David Boldrin; Eduardo Mendive-Tapia; Jan Zemen; Julie B. Staunton; Angelo M. Gomes; Luis Ghivelder; John Halpin; Alexandra S. Gibbs; Araceli Aznar; Josep-Lluís Tamarit; Pol Lloveras; Xavier Moya; Lesley F. Cohen

doi:10.1103/PhysRevB.104.134101

Barocaloric properties of quaternary ${Mn}_{3} (Zn, In) N$ for room-temperature refrigeration applications

David Boldrin ^1,2,*, Eduardo Mendive-Tapia^3,4, Jan Zemen ⁵, Julie B. Staunton ⁴, Angelo M. Gomes ⁶, Luis Ghivelder ⁶, John Halpin², Alexandra S. Gibbs⁷, Araceli Aznar ⁸ et al.

Josep-Lluís Tamarit ⁸, Pol Lloveras ⁸, Xavier Moya⁹, and Lesley F. Cohen¹

¹Department of Physics, Blackett Laboratory, Imperial College London, London SW7 2AZ, United Kingdom
²SUPA, School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom
³Department for Computational Materials Design, Max-Planck-Institut für Eisenforschung, 40237 Düsseldorf, Germany
⁴Department of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom
⁵Faculty of Electrical Engineering, Czech Technical University in Prague, Technická 2, Prague 166 27, Czech Republic
⁶Instituto de Fisica, Universidade Federal do Rio de Janeiro, 21941-972 Rio de Janeiro, RJ, Brazil
⁷ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot OX11 0QX, United Kingdom
⁸Departament de Física, EEBE, Campus Diagonal-Besòs and Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, Eduard Maristany, 10-14, 08019 Barcelona, Catalonia, Spain
⁹Department of Materials Science, University of Cambridge, Cambridge CB3 0FS, United Kingdom

^*Corrsponding author: david.boldrin@glasgow.ac.uk

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Phys. Rev. B 104, 134101 – Published 1 October, 2021

DOI: https://doi.org/10.1103/PhysRevB.104.134101

Abstract

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 properties of metallic antiperovskite Mn nitrides can be tailored for room-temperature application through quaternary alloying. We find an enhanced entropy change of $| Δ S_{t} | = 37 J K^{- 1} {kg}^{- 1}$ at the $T_{t} = 300 K$ antiferromagnetic transition of quaternary ${Mn}_{3} {Zn}_{0.5} {In}_{0.5} N$ relative to the ternary end members. The pressure-driven barocaloric entropy change of ${Mn}_{3} {Zn}_{0.5} {In}_{0.5} N$ reaches $| Δ S_{BCE} | = 20 J K^{- 1} {kg}^{- 1}$ in 2.9 kbar. Our results open up a large phase space where compounds with improved barocaloric properties may be found.

Physical Review B

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Barocaloric properties of quaternary ${Mn}_{3} (Zn, In) N$ for room-temperature refrigeration applications

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

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Barocaloric properties of quaternary ${Mn}_{3} (Zn, In) N$ for room-temperature refrigeration applications