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Electrical resistivity anomalies in the perovskites $La_{1-x}Sr_xMnO_3$

Chainani, A and Mathew, M and Sarma, DD and Das, I and Sampathkumaran, EV (1993) Electrical resistivity anomalies in the perovskites $La_{1-x}Sr_xMnO_3$. In: Physica B: Condensed Matter, 186-18 . pp. 995-997.

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Abstract

The temperature dependence of the resistivity of $La_{1-x}Sr_xMnO_3$ indicates that the samples are semiconducting for x=0.0 and 0.1, but metallic for $x \geq 0.2$ at lower temperatures. The metallic compositions exhibit broad maxima in the range 150-250 K and also a magnetic hysteresis at 300 K. Below 30 K, the authors see an increase in the resistivity for the metallic samples, the temperature dependence of which indicates the importance of electron-electron interactions in these systems.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier.
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited: 13 Aug 2007
Last Modified: 19 Sep 2010 04:38
URI: http://eprints.iisc.ernet.in/id/eprint/11119

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