BULK SUPERCONDUCTIVITY AT AN ELEVATED-TEMPERATURE (T(C)APPROXIMATE-TO-12-K) IN A NICKEL-CONTAINING ALLOY SYSTEM Y-NI-B-C

Authors
NAGARAJAN R MAZUMDAR C HOSSAIN Z DHAR SK GOPALAKRISHNAN KV GUPTA LC GODART C PADALIA BD VIJAYARAGHAVAN R
Citation
R. Nagarajan et al., BULK SUPERCONDUCTIVITY AT AN ELEVATED-TEMPERATURE (T(C)APPROXIMATE-TO-12-K) IN A NICKEL-CONTAINING ALLOY SYSTEM Y-NI-B-C, Physical review letters, 72(2), 1994, pp. 274-277
Citations number
5
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
72
Issue
2
Year of publication
1994
Pages
274 - 277
Database
ISI
SICI code
0031-9007(1994)72:2<274:BSAAE(>2.0.ZU;2-0
Abstract
We report here our discovery of bulk superconductivity at rather high T(c) in samples having nominal compositions YNi4BC0.2 (T(c) almost-equ al-to 12.5 K) and YNi2B3C0.2 (T(c) almost-equal-to 13.5 K). While YNi4 BC0.2 seems to be a single phase material, YNi2B3C0.2 is a multiphase system. Our experimental results show that the two materials axe disti nct superconductors. Discovery of superconductivity in these materials is of significance since not only is their T(c) high (> 10 K) but the y also have nickel in large proportions. No nickel-based ternary super conductor was previously known.