Bhatt, Ramesh Chandra and Manjunatha, S. O. and Rao, Ashok and Thomas, Riya and Awana, V. P. S. and Lin, C. F. and Kuo, Y. K. (2018) Thermal properties of La0.7Ca0.2Sr0.1MnO3:PdO composites. Physica B: Condensed Matter, 550. pp. 117-121. ISSN 0921-4526

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Abstract

A systematic study on the thermal conductivity, Seebeck coefficient and specific heat of La(0.7)Ca(0.2)Sr(0.1)MnO3:PdO composites is presented. Solid state reaction procedure was employed to synthesis the samples. It is seen from thermal conductivity (kappa(T)) studies that the samples exhibit a slope change nature close to their corresponding magnetic phase transition temperature, T-c. The overall magnitude of kappa is observed to decrease with increasing Pd concentration. The analysis of Seebeck coefficient data, S(T) versus temperature, T was done using Mott's polaron hopping model reveals that the electron-magnon scattering is governing the low temperature region. The temperature dependent specific heat C-p(T) is analyzed to determine the entropy change (Delta S) during the magnetic phase transition.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/s Elsevier.
Subjects:	Physics
Divisions:	UNSPECIFIED
Depositing User:	Mr. Yogesh Joshi
Date Deposited:	03 Apr 2019 11:34
Last Modified:	03 Apr 2019 11:34
URI:	http://npl.csircentral.net/id/eprint/4011

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