| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7886535 | Ceramics International | 2018 | 19 Pages |
Abstract
Pyrochlore RE2TiMnO7 (RE = Dy and Ho) compounds were synthesized using a ceramic method, and their crystal structures, microstructures, and cryogenic magnetic properties were determined. Dy2TiMnO7 and Ho2TiMnO7 compounds belong to the Fd-3m space group with a cubic pyrochlore structure and show a considerable reversible magnetocaloric effect (MCE) in the vicinity of the second-order ferromagnetic-paramagnetic (FM-PM) phase transition at the Curie temperature (TC) of 7.6 and 7.5â¯K, respectively. The obtained maximal values of magnetic entropy change (-ÎSMmax) for Dy2TiMnO7 and Ho2TiMnO7 are 12.50 and 13.95â¯J/kg K under a magnetic field change (ÎH) of 0-7â¯T, respectively. Correspondingly, the relative cooling power (RCP) values reach 530.3 and 573.2â¯J/kg, respectively.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Yikun Zhang, Huadong Li, Dan Guo, Zhongming Ren, Gerhard Wilde,