Behavior of the magnetocaloric effect in La0.7Ba0.2Ca0.1Mn1-xSnxO3 manganite oxides as promising candidates for magnetic refrigeration.
In: Physica B, Jg. 537 (2018-05-15), S. 93-97
Online
academicJournal
Zugriff:
The magnetocaloric effect along with magnetic phase transition in the peroveskite polycrystalline samples La 0.7 Ba 0.2 Ca 0.1 Mn 1-x Sn x O 3 (x = 0 and 0.1) was investigated. The samples were synthesized using conventional solid state reaction at 1400 °C temperature. Magnetization vs. temperature measurements, under a magnetic field of μ 0 H = 0.05 T, showed a paramagnetic-ferromagnetic transition at Curie temperature, T C , which decreases from 310 K for x = 0–290 K for x = 0.1. A large magnetic entropy change | Δ S M | deduced from isothermal magnetization curves, has been observed in our samples with a peak centered on their respective T C . Interesting values of the relative cooling power (RCP), 237 J kg -1 for x = 0 and 248 J kg -1 x = 0.1, make these samples promising candidates for magnetic refrigeration around room temperature. [ABSTRACT FROM AUTHOR]
| Titel: |
Behavior of the magnetocaloric effect in La0.7Ba0.2Ca0.1Mn1-xSnxO3 manganite oxides as promising candidates for magnetic refrigeration.
|
|---|---|
| Autor/in / Beteiligte Person: | Dhahri, Ja. ; Mnefgui, Safa ; Ben Hassine, A. ; Tahri, Ta. ; Oumezzine, M. ; Hlil, E.K. |
| Link: | |
| Zeitschrift: | Physica B, Jg. 537 (2018-05-15), S. 93-97 |
| Veröffentlichung: | 2018 |
| Medientyp: | academicJournal |
| ISSN: | 0921-4526 (print) |
| DOI: | 10.1016/j.physb.2018.02.006 |
| Schlagwort: |
|
| Sonstiges: |
|