Electrical conduction and thermal properties of Bi-doped Pr 0·7Sr0·3MnO3 manganite

Mamatha D. Daivajna, Neeraj Kumar, Bhasker Gahtori, V. P S Awana, Y. K. Kuo, Ashok Rao

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Electrical and thermal properties of Bi-doped Pr 0·7Sr0·3MnO3 (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 (TMI, TC, TCP). 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.

Original languageEnglish
Pages (from-to)47-51
Number of pages5
JournalBulletin of Materials Science
Issue number1
Publication statusPublished - 2014


All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials

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