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Cryogenic magnetic properties and magnetocaloric performance in double perovskite Pr2NiMnO6 and Pr2CoMnO6 compounds.
- Source :
-
Ceramics International . Dec2018, Vol. 44 Issue 17, p20762-20767. 6p. - Publication Year :
- 2018
-
Abstract
- Abstract Double perovskite Pr 2 NiMnO 6 (PNMO) and Pr 2 CoMnO 6 (PCMO) ceramics have been synthesized and their crystal structure, microstructure, as well as cryogenic magnetic properties and magnetocaloric performance have been investigated. The crystal structure of PNMO and PCMO ceramics was determined to be monoclinic with space group of P21/n at room temperature. A ferromagnetic to paramagnetic (FM-PM) phase transition (second-order) occurred in PNMO and PCMO around 208 and 170 K, respectively. Significant reversible magnetocaloric effect (MCE) was found and the values of the maximum magnetic entropy change (-Δ S M max) were 3.15 and 3.91 J/kg-K under the magnetic field change (Δ H) of 0–7 T in PNMO and PCMO, respectively. The corresponding relative cooling power (RCP) values were 241.9 and 229.9 J/kg. [ABSTRACT FROM AUTHOR]
- Subjects :
- *PRASEODYMIUM
*MANGANESE compounds
*PEROVSKITE
*CRYOGENICS
*MAGNETOCALORIC effects
Subjects
Details
- Language :
- English
- ISSN :
- 02728842
- Volume :
- 44
- Issue :
- 17
- Database :
- Academic Search Index
- Journal :
- Ceramics International
- Publication Type :
- Academic Journal
- Accession number :
- 132321802
- Full Text :
- https://doi.org/10.1016/j.ceramint.2018.08.075