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| Field | Value |
| Title | Effect of cobalt substitution on magneto-transport properties of Nd0.7Sr0.3Mn1-xCoxO3 (0.0 <= x <= 1) |
| Names |
ASTHANA, S
(author) NIGAM, AK (author) BAHADUR, D (author) |
| Date Issued | 2005 (iso8601) |
| Abstract | Magnetic and transport studies of the compounds Nd0.7Sr0.3Mn1-xCoxO3 (0.0 <= x <= 1) have been carried out. The compositions crystallize in single-phase ortho-perovskite. The conduction mechanism could be explained using the small polaron correlated hopping model. The thermal irreversibility in zero-field and field-cooled magnetization data increases with Co content, which is due to the different spin states of the Co. Transition of CO3+ from high spin/intermediate spin to low spin state is observed at low temperatures. The nonsaturating M-H behavior is observed in cobalt containing samples due to suppression of double-exchange interaction which favors long-range ferromagnetic order. (c) 2005 American Institute of Physics. |
| Genre | Article; Proceedings Paper |
| Topic | perovskite |
| Identifier | 0021-8979 |
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