Investigation on the structural and thermal properties of rare earth La0.8Na0.2MnO3 manganite
| Author(s) | : | S. Tiwari, M. Saleem, Dinesh Varshney |
| Institution | : | Materials Science Laboratory, School of Physics, Vigyan Bhawan, Devi Ahilya University, Khandwa Road Campus, Indore 452001, India |
| Published In | : | Vol. 4, Issue 17 — January 2017 |
| Page No. | : | - |
| Domain | : | Engineering |
| Type | : | Research Paper |
| ISSN (Online) | : | 2348-4470 |
| ISSN (Print) | : | 2348-6406 |
An alkali metal doped rare earth La0.8Na0.2MnO3 manganite has been successfully prepared by solid statereaction route. The sample is highly crystalline and single phased. The structure of the sample has been confirmed byanalyzing the X.- ray diffraction spectrum and it was found that the sample exhibits the rhombohedral structure with theassigned space group R3c. The particle size has been calculated using Scherer’s formula which is about 21 nm. Forfurther confirmation of the structure and structure related parameters, Retvield refinement has been carried out on theXRD data. Differential Scanning Calorimetery (DSC) specific heat measurement in the temperature range 300 K-350 Kwas done on the sample. Phase transitions around 340 K is observed which is transition from paramagnetic toferromagnetic (TC) and around 350 K which is metal to insulator transition(TMI) both of which are consistent with thetemperature dependent dc resistivity results already published for the sample of the same composition.
S. Tiwari, M. Saleem, Dinesh Varshney, “Investigation on the structural and thermal properties of rare earth La0.8Na0.2MnO3 manganite”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 4, Issue 17, pp. -, January 2017.
