Solution sol–gel processing and investigation of percolation threshold in La2/3Ca1/3MnO3:xSiO2 nanocomposite
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Solution sol–gel processing and investigation of percolation threshold in La2=3Ca1=3MnO3:xSiO2 nanocomposite
The composites of La2=3Ca1=3MnO3:xSiO2 (0pxp0:40) have been synthesized by sol–gel technique to derive homogeneous nanocomposites. Si by virtue of its strong preference for tetrahedral site does not enter the perovskite lattice. The percolation threshold composition has been determined by resistivity measurements at around 90% volume fraction of LCMO. A detailed electrical, magnetic and magneto...
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ژورنال
عنوان ژورنال: Journal of Magnetism and Magnetic Materials
سال: 2002
ISSN: 0304-8853
DOI: 10.1016/s0304-8853(01)00859-9