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Electronic Resistivity of La1-xPrxMnO3 Manganites

Akhilesh Dubey1, M. S. Azad3 and A. K. Shrivastava2

1Department of Physics, Jagadguru Dattatray College of Technology, Indore, M. P., INDIA. 2Department of Physics, Dr. C. V. Raman University, Kargi Road Kota – Bilaspur, C. G., INDIA. 3Malwa Institute of Technology, Dewas Road Indore, M. P., INDIA.

ABSTRACT

We undertake a quantitative analysis of reported metallic behaviour of resistivity in perovskite manganites La0.9Pr0.1MnO3. The electrical resistivity data in low temperature regime were theoretically analyzed within the framework of the classical electron–phonon model of resistivity, i.e., the Bloch–Gruneisen (BG) model. The Bloch–Gruneisen (BG) model and simplify the electron-phonon, electron-electron and electron-magnon scattering processes. The metallic resistivity behaviour of strontium-substituted manganites are analyzed highlighting the importance of electron-phonon, electron-electron, and electron-magnon interactions.

Keywords : perovskite manganites La0.9Pr0.1MnO3, Bloch–Gruneisen, Electronmagnon.