Article ID Journal Published Year Pages File Type
1815718 Physica B: Condensed Matter 2006 6 Pages PDF
Abstract

In this work, we present magnetic and electrical properties of La0.67Ca0.33Mn1−xVxO3 (x=0x=0 and 0.1). Polycrystalline La0.67Ca0.33MnO3 and La0.67Ca0.33Mn0.9V0.1O3 samples were prepared by conventional solid-state reaction. Two Curie temperatures for the La0.67Ca0.33Mn0.9V0.1O3 sample were observed at Tc1=223K and Tc2=190K. The undoped La0.67Ca0.33MnO3 sample showed only one magnetic transition temperature at 267 K. The temperature dependence of resistance showed two maxima in the V-doped sample, and the peak value of magnetoresistance (MR) around the Curie temperature increased with V doping. Double maxima in the resistance–temperature and magnetisation–temperature curves are explained by the existence of two phases in La0.67Ca0.33Mn0.9V0.1O3 samples.

Related Topics
Physical Sciences and Engineering Physics and Astronomy Condensed Matter Physics
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