Goyal, Reena and Tiwari, Brajesh and Jha, Rajveer and Awana, V. P. S. (2015) Specific Heat of Robust Nb2PdS5 Superconductor. Journal of Superconductivity and Novel Magnetism, 28 (5). 1427-1432 . ISSN 1557-1939

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Abstract

We report specific heat under different magnetic fields for recently discovered quasi-one-dimensional Nb2PdS5 superconductor. The studied compound is superconducting below 6 K. Nb2PdS5 is quite robust against magnetic field with dH (c)/dT of -42 kOe/K. The estimated upper critical field [ H (c2)(0)] is 190 kOe, clearly surpassing the Pauli-paramagnetic limit of 1.84 T (c). Low-temperature heat capacity in superconducting state of Nb2PdS5 under different magnetic fields showed s-wave superconductivity with two different gaps. Two quasilinear slopes in Somerfield coefficient (gamma) as a function of applied magnetic field and two-band behavior of the electronic heat capacity demonstrate that Nb2PdS5 is a multiband superconductor in weak coupling limit with Delta C/ gamma T (c) = 0.9.

Item Type:	Article
Uncontrolled Keywords:	Superconductivity Magneto transport Heat capacity
Subjects:	Applied Physics/Condensed Matter
Divisions:	UNSPECIFIED
Depositing User:	Dr. Rajpal Walke
Date Deposited:	13 Oct 2016 07:31
Last Modified:	13 Oct 2016 07:31
URI:	http://npl.csircentral.net/id/eprint/1989

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