Bulk superconductivity at an elevated temperature (Tc≊12 K) in a nickel containing alloy system Y-Ni-B-C

Nagarajan, R. ; Mazumdar, Chandan ; Hossain, Zakir ; Dhar, S. K. ; Gopalakrishnan, K. V. ; Gupta, L. C. ; Godart, C. ; Padalia, B. D. ; Vijayaraghavan, R. (1994) Bulk superconductivity at an elevated temperature (Tc≊12 K) in a nickel containing alloy system Y-Ni-B-C Physical Review Letters, 72 (2). pp. 274-277. ISSN 0031-9007

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Official URL: http://prl.aps.org/abstract/PRL/v72/i2/p274_1

Related URL: http://dx.doi.org/10.1103/PhysRevLett.72.274

Abstract

We report here our discovery of bulk superconductivity at rather high Tc in samples having nominal compositions YNi4BO0.2 (Tc≊12.5 K) and YNi2B3O0.2 (Tc≊13.5 K). While YNi4BC0.2 seems to be a single phase material, YNi2B3C0.2 is a multiphase system. Our experimental results show that the two materials are distinct superconductors. Discovery of superconductivity in these materials is of significance since not only is their Tc high (>10 K) but they also have nickel in large proportions. No nickel-based ternary superconductor was previously known.

Item Type:Article
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ID Code:11276
Deposited On:09 Nov 2010 03:40
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