Effect of Electron Beam Irradiation on Structural, Electrical and Thermo-electric Power of La0.8Sr0.2MnO3

Rao, Ashok and Christopher, Benedict J and Sanjeev, Ganesh and Okram, G S (2015) Effect of Electron Beam Irradiation on Structural, Electrical and Thermo-electric Power of La0.8Sr0.2MnO3. Journal of Nano and Electronics Physics, 7 (1).

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Abstract

In this communication, we are reporting the effect of electron beam (e-beam) irradiation on thermoelectric properties of La0.8Sr0.2MnO3 manganites. The samples were prepared using solid state reaction technique. It is observed that the lattice volume increases with increase in dosage of e-beam. With irradiation an increase in resistivity is observed. For small irradiation dosage, we first observe a decreases in metalinsulator transition temperature TMI; thereafter TMI increases with further increase in dosage of irradiation. Both, the resistivity data and thermo-electric power data demonstrate that small polaron hopping model is valid in high temperature region.

Item Type: Article
Uncontrolled Keywords: Solid state reaction technique, Electrical resistivity, Thermoelectric power.
Subjects: Engineering > MIT Manipal > Physics
Depositing User: MIT Library
Date Deposited: 29 Jun 2015 09:15
Last Modified: 29 Jun 2015 09:15
URI: http://eprints.manipal.edu/id/eprint/143167

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