TY  - JOUR
AU  - Boldrin, David
AU  - Mendive Tapia, Eduardo
AU  - Zemen, Jan
AU  - Staunton, Julie B.
AU  - Gomes, Angelo M.
AU  - Ghivelder, Luis
AU  - Halpin, John
AU  - Gibbs, Alexandra S.
AU  - Aznar, Araceli
AU  - Tamarit, Josep-Lluís
AU  - Lloveras, Pol
AU  - Moya, Xavier
AU  - Cohen, Lesley F.
TI  - Barocaloric properties of quaternary Mn 3 (Zn , In) N for room-temperature refrigeration applications
JO  - Physical review / B
VL  - 104
IS  - 13
SN  - 1098-0121
CY  - Woodbury, NY
PB  - Inst.
M1  - FZJ-2021-04935
SP  - 134101
PY  - 2021
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000704471500001
DO  - DOI:10.1103/PhysRevB.104.134101
UR  - https://juser.fz-juelich.de/record/903228
ER  -