Effect of Sn-doping on the structural,magnetic and magnetocaloric properties of La0.67Ba0.33Mn1−xSnxO3 compounds |
| |
| Authors: | J. Dhahri A. Dhahri M. Oumezzine E. Dhahri |
| |
| Affiliation: | 1. Laboratoire de Physique des Solides, Département de Physique, Faculté des Sciences de Monastir, Monastir 5019, Tunisia;2. Laboratoire Physico-chimie structurale, Département de physique, Faculté des Sciences de Monastir, Monastir 5019, Tunisia;3. Laboratoire de Physique appliqué, Département de physique, Faculté des sciences de Sfax, 3018, Tunisia |
| |
| Abstract: | Magnetocaloric effect (MCE) in fine-grained perovskite manganites of the type La0.67Ba0.33Mn1−xSnxO3 (x=0.05, 0.1 and 0.15) were prepared by the solid-state method. The prepared samples remain single phase and exhibit paramagnetic to ferromagnetic phase transition (TC) at 340, 325 and 288 K for x=0.05, 0.1 and 0.15, respectively. From the measured magnetization data of La0.67Ba0.33Mn1−xSnxO3 compounds as a function of field (2 T), the associated magnetic entropy change close to their respective Curie temperatures and the relative cooling power (RCP) have been determined. Large MCE has been obtained in all samples and |ΔSM|max reached the highest value of 2.49 J/kg K at TC (288 K) for the sample x=0.15, with H=2 T. |
| |
| Keywords: | Magnetic oxide Entropy change Magnetocaloric effect Magnetic refrigerant material |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
