Journal Article

FZJ-2021-04935

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Barocaloric properties of quaternary Mn 3 (Zn , In) N for room-temperature refrigeration applications

Boldrin, D. (Corresponding author) ; Mendive Tapia, E.FZJ* ; Zemen, J. ; Staunton, J. B. ; Gomes, A. M. ; Ghivelder, L. ; Halpin, J. ; Gibbs, A. S. ; Aznar, A. ; Tamarit, J.-L. ; Lloveras, P. ; Moya, X. ; Cohen, L. F.

2021
Inst. Woodbury, NY

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Please use a persistent id in citations: http://hdl.handle.net/2128/29373  doi: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 |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.

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Contributing Institute(s):

1. Quanten-Theorie der Materialien (IAS-1)
2. Quanten-Theorie der Materialien (PGI-1)
3. JARA-FIT (JARA-FIT)
4. JARA - HPC (JARA-HPC)

Research Program(s):

1. 5211 - Topological Matter (POF4-521) (POF4-521)

Appears in the scientific report 2021

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Electronics and Telecommunications Collection ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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