Rao, Ashok and Gahtori, Bhasker and Agarwal, S. K. and Chakraborty, Tirthankar and Sarkar, Chandan Kumar and Das, Anirban (2008) Low temperature specific heat (zero field and with field) of Fe and Mn-doped MgB2. Physica C: Superconductivity, 469 (1). pp. 64-69. ISSN 0921-4534

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Abstract

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

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/s Elsevier B.V.
Uncontrolled Keywords:	MgB2 superconductors; Critical field; Specific heat
Subjects:	Physics
Divisions:	UNSPECIFIED
Depositing User:	Ms Neetu Chandra
Date Deposited:	10 Sep 2012 08:03
Last Modified:	10 Sep 2012 08:03
URI:	http://npl.csircentral.net/id/eprint/557

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