Grain Size Induced Metal-insulator Transition in La0.7Sr0.3MnO3 Compounds
Electronic Archive of Sumy State University
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Grain Size Induced Metal-insulator Transition in La0.7Sr0.3MnO3 Compounds
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| Creator |
Reshi, Hilal Ahmad
Shelke, Vilas |
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| Subject |
Nanomaterials
Manganites Metal-insulator transition |
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| Description |
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.
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| Publisher |
Sumy State University
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| Date |
2014-06-02T09:59:53Z
2014-06-02T09:59:53Z 2013 |
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| Type |
Article
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| Identifier |
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.
http://essuir.sumdu.edu.ua/handle/123456789/35542 |
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| Language |
en
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