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Giant barocaloric effect in all-d-metal Heusler shape memory alloys

Author
Aznar, A.; Gracia-Condal, A.; Planes, A.; Lloveras, P.; Del Barrio, M.; Tamarit, J. Ll.; Xiong, W.; Cong, D.; Popescu, C.; Mañosa Carrera, Lluis
Type of activity
Journal article
Journal
Physical review materials
Date of publication
2019-04-16
Volume
3
First page
044406:1
Last page
044406:7
DOI
10.1103/PhysRevMaterials.3.044406
Repository
http://hdl.handle.net/2117/176503 Open in new window
URL
https://journals.aps.org/prmaterials/abstract/10.1103/PhysRevMaterials.3.044406 Open in new window
Abstract
We have studied the barocaloric properties associated with the martensitic transition of a shape memory Heulser alloy Ni50Mn31.5Ti18.5 which is composed of all-d-metal elements. The composition of the sample has been tailored to avoid long range ferromagnetic order in both ausenite and martensite. The lack of ferromagnetism results in a weak magnetic contribution to the total entropy change thereby leading to a large transition entropy change. The combination of such a large entropy change and a...
Citation
Aznar, A. [et al.]. Giant barocaloric effect in all-d-metal Heusler shape memory alloys. "Physical review materials", 16 Abril 2019, vol. 3, p. 044406:1-044406:7.
Group of research
CRnE - Barcelona Research Center in Multiscale Science and Engineering
GCM - Group of Characterization of Materials

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