Jha, Rajveer and Goyal, Reena and P., Neha and Maurya, V. K. and Srivastava, A. K. and Gupta, Anurag and Patnaik, S. and Awana, V. P. S. (2016) Weak ferromagnetism in a noncentrosymmetric BiPd 4K superconductor. Superconductor Science and Technology, 29 (2). ISSN 0953-2048

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Abstract

We report the synthesis of noncentrosymmetric BiPd single crystal by the self-flux method. The BiPd single crystal is crystallized in monoclinic structure with the P2(1) space group. Detailed SEM (scanning electron microscopy) results show that the crystals are formed in a slab like morphology with homogeneous distribution of Bi and Pd. The magnetic susceptibility measurements confirmed that the BiPd compound is superconducting below 4 K. Further, BiPd exhibits weak ferromagnetism near the superconducting transition temperature in isothermal magnetization (MH) measurements. The temperature-dependent electrical resistivity also confirmed that the BiPd single crystal is superconducting at T-c = 4 K. Magnetotransport measurements showed that the estimated H-c2(0) value is around 7.0 kOe. We also obtained a sharp peak in heat capacity Cp(T) measurements below 4 K due to superconducting ordering. The normalized specific heat jump, Delta C/gamma T-c, is 1.52, suggesting the BiPd to be an intermediate BCS coupled superconductor. The pressure-dependent electrical resistivity shows that the T-c decreases with increasing applied pressure and the obtained dT(c)/dP is -0.62 K Gpa(-1). Summarily, detailed superconductivity characterization of noncentrosymmetric BiPd single crystal is performed and discussed briefly in the present article.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/s IOP Publishing.
Uncontrolled Keywords:	noncentrosymmetric superconductors BiPd crystal growth electric magnetic thermal characterization
Subjects:	Applied Physics/Condensed Matter
Divisions:	UNSPECIFIED
Depositing User:	Dr. Rajpal Walke
Date Deposited:	23 Apr 2018 12:31
Last Modified:	23 Apr 2018 12:31
URI:	http://npl.csircentral.net/id/eprint/2412

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