Article ID Journal Published Year Pages File Type
1596111 Solid State Communications 2007 4 Pages PDF
Abstract

The structure, transport and magnetic properties of (La0.8Sr0.2)1−xMnO3 (0≤x  ≤0.30) polycrystalline perovskite manganites have been investigated. For all the samples the Curie temperatures, TcTc, remain nearly unchanged (329±3 K). Resistivity versus temperature curves for the samples show a double-peak behavior. A significant magnetoresistance (MR) effect and different temperature dependences of the MR ratios of the samples are observed. The shapes of the MR–TT curves of the samples can be adjusted by changing xx. For the x=0.30x=0.30 sample, a nearly constant MR ratio of (9.5±0.5)% is obtained over the temperature range from 205 to 328 K.

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Physical Sciences and Engineering Materials Science Materials Science (General)
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