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Persistent URL http://purl.org/net/epubs/work/50574594
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Record Id 50574594
Title Barocaloric properties of quaternary Mn3(Zn,In)N for room-temperature refrigeration applications
Contributors
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 |ΔSt|=37JK−1kg−1 at the Tt=300K antiferromagnetic transition of quaternary Mn3Zn0.5In0.5N relative to the ternary end members. The pressure-driven barocaloric entropy change of Mn3Zn0.5In0.5N reaches |ΔSBCE|=20JK−1kg−1 in 2.9 kbar. Our results open up a large phase space where compounds with improved barocaloric properties may be found.
Organisation ISIS , ISIS-HRPD , STFC
Keywords
Funding Information EPSRC (EP/P511109/1); EPSRC (EP/P030548/1); EPSRC (EP/J06750/1); EPSRC (EP/M028941/1); Ministerio de Asuntos Económicos y Transformación Digital, Gobierno de España (FIS2017-82625-P); ERC (680032); Leverhulme Trust (ECF-2019-351); University of Glasgow; Royal Society; Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro; Conselho Nacional de Desenvolvimento Científico e Tecnológico; STFC; Lord Kelvin Adam Smith
Related Research Object(s): 50673940 , 10.5286/ISIS.E.RB1810625
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Language English (EN)
Type Details URI(s) Local file(s) Year
Journal Article Phys Rev B 104, no. 13 (2021): 134101. doi:10.1103/PhysRevB.104.134101 2021