Low temperature specific heat (zero field and with field) of Fe and Mn-doped MgB2

Rao, Ashok and Gahtori, Bhaskar and Agarwal, S K and Chakraborty, Tirthankar and Sarkar, Chandan and Das , Anirban (2008) Low temperature specific heat (zero field and with field) of Fe and Mn-doped MgB2. Physica C, 30.

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Abstract

Polycrystalline samples of MgB2 superconductor (Mn-doped as well as pristine) were investigated by 28 measurements of the electrical resistivity, magneto-resistance in the temperature range of 4–300 K. All 29 the samples show metallic behaviour. It is observed that the upper critical field slightly decreases with 30 Mn concentration. Specific heat measurements were performed with field as well as without field. For 31 comparison, we also prepared one Fe-doped and specific heatmeasurements were also carried out on this 32 sample. It is observed that the jump in specific heat decreases with increase in Mn content.

Item Type: Article
Uncontrolled Keywords: MgB2 superconductors Critical field Specific heat
Subjects: Engineering > MIT Manipal > Physics
Depositing User: MIT Library
Date Deposited: 11 Mar 2014 11:37
Last Modified: 11 Mar 2014 11:37
URI: http://eprints.manipal.edu/id/eprint/139071

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