| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1612885 | Journal of Alloys and Compounds | 2013 | 6 Pages |
Abstract
We have investigated structural, electrical and magnetic properties of polycrystalline sample La0.4Bi0.1Ca0.5MnO3. The X-ray powder diffraction data shows that the sample is single phase and crystallizes in the orthorhombic structure with Pnma space group. Magnetization measurements show a sharp decrease of magnetization values comparing to La0.5Ca0.5MnO3 compound. Our sample exhibits four magnetic transitions as a function of temperature. The charge ordering state seems to be stabilized with bismuth doping which can be explained by the role of the 6s2 lone pair electrons of Bi3+ ions. Electrical resistivity shows a semiconducting behavior in the temperature range 100-280Â K. The study indicates also the presence of Griffiths below 270Â K.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
A. Krichene, W. Boujelben, A. Cheikhrouhou,