Vajpayee, Arpita and Awana, V. P. S. and Yu, S. and Bhalla, G. L. and Kishan, H. (2009) Effect of single-walled carbon nano-tube (CNT) addition on superconducting properties of bulk MgB2 superconductor. Physica C: Superconductivity, 470 (1). S653-S654. ISSN 0921-4534

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Abstract

Here, effect of single-walled carbon nano-tube (CNT) doping on transition temperature, lattice parameters, critical current density and flux pinning in MgB2 superconductor was studied. The carbon substitution for B was found to enhance critical current density Jc in magnetic fields but depress critical temperature Tc. The depression of Tc is caused by the carbon substitution for B, which is also confirmed by Rietveld analysis of room temperature XRD patterns of doped samples. We achieved enhancement of critical current density (Jc) and flux pinning by almost an order of magnitude, particularly in higher magnetic fields.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/s Elsevier B.V.
Uncontrolled Keywords:	MgB2 superconductor; CNT doping; Flux pinning; Critical current density
Subjects:	Physics
Divisions:	UNSPECIFIED
Depositing User:	Ms Neetu Chandra
Date Deposited:	10 Apr 2012 10:40
Last Modified:	10 Apr 2012 10:40
URI:	http://npl.csircentral.net/id/eprint/106

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