Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9834120 | Journal of Magnetism and Magnetic Materials | 2005 | 8 Pages |
Abstract
The influence of A-site disorder on the magnetic and transport properties of Pr0.7âyHoySr0.3MnO3 (y=0, 0.04, 0.08 and 0.1) polycrystalline samples is analyzed within the context of percolative transport and the existence of Griffiths phase. It is seen that the metal-insulator transition temperature is higher than the Curie temperature and coincides with the Griffiths temperature. The percolation threshold was found to increase with the increase in the A-site disorder.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
N. Rama, V. Sankaranarayanan, M.S.R. Rao,