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

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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
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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