DAIVAJNA, MAMATHA D. and KUMAR, NEERAJ and GAHTORI, BHASKER and AWANA, V. P. S. and KUO, Y. K. and RAO, ASHOK
(2014)
Electrical conduction and thermal properties of Bi-doped Pr0.7Sr0.3MnO3 manganite.
Bulletin of Materials Science, 31 (1).
pp. 47-51.
ISSN 0250-4707
Abstract
Electrical and thermal properties of Bi-doped Pr0.7Sr0.3MnO3 (PSMO) compounds are reported here. It is observed that Bi-doped PSMO compounds follow variable range conduction mechanism. Specific heat, thermal conductivity and thermo-power measurements show that larger Bi-ion, in place of smaller Pr ion, enhances their transition temperatures (T-MI, T-C, T-CP). Thermo-power measurements further strengthen our conclusion for the presence of magnetic polaron, generated due to hybridization of Bi3+-6s(2) and O2--2p orbital and polaronic conduction mechanism.
| Item Type: |
Article
|
| Uncontrolled Keywords: |
Magnetic polaron;
variable range conduction;
thermal measurement |
| Subjects: |
Materials Science |
| Divisions: |
UNSPECIFIED |
| Depositing User: |
Dr. Rajpal Walke
|
| Date Deposited: |
01 Oct 2015 05:40 |
| Last Modified: |
01 Oct 2015 05:40 |
| URI: |
http://npl.csircentral.net/id/eprint/1262 |
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