Grain Size Induced Metal-insulator Transition in La0.7Sr0.3MnO3 Compounds

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Title	Grain Size Induced Metal-insulator Transition in La0.7Sr0.3MnO3 Compounds
Authors	Reshi, Hilal Ahmad Shelke, Vilas
ORCID
Keywords	Nanomaterials Manganites Metal-insulator transition
Type	Article
Date of Issue	2013
URI	http://essuir.sumdu.edu.ua/handle/123456789/35542
Publisher	Sumy State University
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Citation	Hilal, Ahmad Reshi Grain Size Induced Metal-insulator Transition in La0.7Sr0.3MnO3 Compounds [Текст] / A. R. Hilal, S. Vilas // Журнал нано- та електронної фізики. - 2013. - Т.5, №4, Ч.ІІ. - 04053.
Abstract	The effect of different synthesis techniques on structural, microstructural and electrical properties of La0.7Sr0.3MnO3 (LSMO) was investigated. Two different techniques viz solid state reaction (SSR) and sol-gel (SG) method were used to prepare the samples. X-ray studies have confirmed the single phase formation of LSMO by both the techniques. The average grain size was 2 m for solid state reaction sample and 22 nm for sol-gel sample. A substantial enhancement in electrical resistivity was observed in the sample with nanosized grains. The micro grain size sample exhibited metallic behaviour whereas nanoparticle sample showed metal-insulator transition around 250 K. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/35542
Appears in Collections:	Журнал нано- та електронної фізики (Journal of nano- and electronic physics)