Nalini, G. ; Sahana, M. ; Hegde, M. S. ; Guru Row, T. N. (2001) Structure of the mixed oxides La0.6Pb0.4Mn1-yTiyO3±z (0 < y < 0.4) via Rietveld refinements Materials Research Bulletin, 36 (1-2). pp. 307-314. ISSN 0025-5408
Full text not available from this repository.
Official URL: http://linkinghub.elsevier.com/retrieve/pii/S00255...
Related URL: http://dx.doi.org/10.1016/S0025-5408(00)00474-8
Abstract
The crystal structure of several compositions in the system La0.6Pb0.4Mn1-yTiyO3 (0 ≤ y ≤ 0.4) have been investigated by powder X-ray diffraction using the Rietveld refinement technique. The solid solutions of compositions Y = 0.1, 0.2, and 0.3 crystallize in the rhombohedral structure (space group R3̅ c), while for the composition corresponding to Y = 0.4, the crystal structure transforms from rhombohedral to orthorhombic system (space group Imma). Profile refinements on all these compositions reveal that the MnO6 octahedra are distorted and rotated from their ideal positions. The doping at the B-site results in the formation of the orthorhombic phase Imma at room temperature. The structural implications on the magnetic properties also correlate with previous observations.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | A. Oxides; B. Chemical Synthesis; C. X-ray Diffraction; D. Crystal Structure |
| ID Code: | 16180 |
| Deposited On: | 15 Nov 2010 14:04 |
| Last Modified: | 03 Jun 2011 04:25 |
Repository Staff Only: item control page
