Weak ferromagnetism in a noncentrosymmetric BiPd 4K superconductor
IR@NPL: CSIR-National Physical Laboratory, New Delhi
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| Title |
Weak ferromagnetism in a noncentrosymmetric BiPd 4K superconductor
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| Creator |
Jha, Rajveer
Goyal, Reena P., Neha Maurya, V. K. Srivastava, A. K. Gupta, Anurag Patnaik, S. Awana, V. P. S. |
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| Subject |
Applied Physics/Condensed Matter
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| Description |
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.
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| Publisher |
IOP Publishing
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| Date |
2016-02
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://npl.csircentral.net/2412/1/Weak%20ferromagnetism.pdf
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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| Relation |
http://npl.csircentral.net/2412/
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