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Effect of Sintering Temperature on Structural, Electrical and Magnetic Properties of La0.7Sr0.3MnO3

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Abstract:

The influence of sintering temperature on structural, microstructure and transports properties of La0.7Sr0.3MnO3 (LSMO) prepared via sol-gel techniques is introduced. Sintering temperature of LSMO varied from 650°C to 950°C with the interval of 100°C. All samples show single phase structure with hexagonal setting. Refinement was done on the XRD data obtained. Microstructure investigation displayed an increment in average grain size of LSMO due to the grain growth promotion as the sintering temperature increased. Magnetization of all samples was enhanced by the grain growth promotion. Resistivity experienced a reduction trend and Tp shifted to higher temperature as the sintering temperature increased. All sintered LSMO exhibit LFMR effect at low applied field and low temperature.

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Periodical:

Advanced Materials Research (Volume 1107)

Pages:

283-288

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1107.283

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Online since:

June 2015

Authors:

Kai Yap Pan, Abdul H. Shaari, Soo Kien Chen, Lim Kean Pah, Manizheh Navasery, Mohd Mustafa Awang Kechik

Keywords:

Colossal Magnetoresistance, Ferromagnetic, Resistivity, Sintering Temperature, Sol-Gel

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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