Abstract
We investigated the hydrogen effect on superconductivity in the (Ni 0.36Nb 0.24Zr 0.40) 100-xH x(0 ≤ x ≤ 6.4) glassy alloys with nanoclusters, as a function of temperature. The resistivity of these alloys started to drop from onset temperature of around 9.5 K. The (Ni 0.36Nb 0.24Zr 0.40) 98.6H 1.6 showed zero resistance at 2.1 K. However, the application of a magnetic field >4.6 T arrested the drop of resistivity, showing the existence of superconductivity of type II. The maximum onset temperature of 11.3 K was observed at 4.4 at% H. The superconducting behavior of the glassy alloys would be associated with electron pair transport along zigzag paths, which link the shortened atomic-Ni-Ni-Ni-array in the Zr 5Ni 5Nb 3 clusters, and tunneling among the clusters.
Original language | English |
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Pages (from-to) | 4975-4978 |
Number of pages | 4 |
Journal | Journal of Nanoscience and Nanotechnology |
Volume | 10 |
Issue number | 8 |
DOIs | |
Publication status | Published - 2010 Aug 1 |
Keywords
- Glassy alloys
- Nanoclusters
- Superconductor
ASJC Scopus subject areas
- Bioengineering
- Chemistry(all)
- Biomedical Engineering
- Materials Science(all)
- Condensed Matter Physics