Effect of Mn substitution on the thermo-power of the superconductor Mg1-xMnxB2

Rao, Ashok and Chakraborty, Tirthankar and Gahtori, Bhaskar and Sarkar, Chandan and Agarwal, S K and Soni, Ajay and Okram, G S (2010) Effect of Mn substitution on the thermo-power of the superconductor Mg1-xMnxB2. Journal of Physics : Conference series, 234.

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In this communication a systematic study has been made on the effect of Mn substitution on the thermo-power of MgB2 superconducting compounds involving 0%, 0.5%, 1.0%, 1.5% and 2% Mn content. The superconducting transition has been found to be very sharp for the pure compound of MgB2 and it is observed that the transition width increases with Mn content. For small values of Mn content, the thermo-power S(T) increases with Mn content which suggests that the hole density increases. However, with further increase in Mn content, a small decrease in S(T) is observed. For all the compounds, we have observed the expected linear region at low temperatures. There is no systematic trend in the slopes dS/dT with Mn content.

Item Type: Article
Subjects: Engineering > MIT Manipal > Physics
Depositing User: MIT Library
Date Deposited: 07 Mar 2014 11:24
Last Modified: 07 Mar 2014 11:24
URI: http://eprints.manipal.edu/id/eprint/139040

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