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

Research output: Contribution to journalArticle

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Abstract

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
Volume37
Issue number1
Publication statusPublished - 2014

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Thermodynamic properties
Ions
Gene Conversion
Superconducting transition temperature
Specific heat
Thermal conductivity
Electric properties
manganite

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials

Cite this

Daivajna, Mamatha D. ; Kumar, Neeraj ; Gahtori, Bhasker ; Awana, V. P S ; Kuo, Y. K. ; Rao, Ashok. / Electrical conduction and thermal properties of Bi-doped Pr 0·7Sr0·3MnO3 manganite. In: Bulletin of Materials Science. 2014 ; Vol. 37, No. 1. pp. 47-51.
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Electrical conduction and thermal properties of Bi-doped Pr 0·7Sr0·3MnO3 manganite. / Daivajna, Mamatha D.; Kumar, Neeraj; Gahtori, Bhasker; Awana, V. P S; Kuo, Y. K.; Rao, Ashok.

In: Bulletin of Materials Science, Vol. 37, No. 1, 2014, p. 47-51.

Research output: Contribution to journalArticle

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AU - Daivajna, Mamatha D.

AU - Kumar, Neeraj

AU - Gahtori, Bhasker

AU - Awana, V. P S

AU - Kuo, Y. K.

AU - Rao, Ashok

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AB - 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.

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