Coulomb oscillation of a deuteron in a Ni-Nb-Zr-D glassy alloy with multiple junctions

Electric-current-induced voltage oscillation at 600-740 kHz was observed in the current-voltage curves of nanoscopic size tunnel junctions arranged in a low-capacitance, multiple-junction configuration of ((Ni60Nb40)$_{100-x}$Zrx)$_{100-y}$ Dy ($x=30$, 35, 40 and 45, 9.1$\leqslant y\leqslant$ 14.8)...

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Bibliographic Details
Published in:Europhysics letters 2008-08, Vol.83 (3), p.36002-36002(5)
Main Authors: Fukuhara, M, Inoue, A
Format: Article
Language:English
Subjects:
61.43.Dq
73.21.La
73.23.Hk
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Summary:Electric-current-induced voltage oscillation at 600-740 kHz was observed in the current-voltage curves of nanoscopic size tunnel junctions arranged in a low-capacitance, multiple-junction configuration of ((Ni60Nb40)$_{100-x}$Zrx)$_{100-y}$ Dy ($x=30$, 35, 40 and 45, 9.1$\leqslant y\leqslant$ 14.8) glassy alloys in the temperature range of 373 K to 6 K. This behavior appeared to be derived from Coulomb oscillation resulting from the tunneling of individual deuteron charging and discharging the vacancy capacitance of Zr-D-$\square $-D-Zr atomic bond arrays among Zr-tetrahedral clusters, where $\square $ is the vacancy barrier between clusters.
ISSN:0295-5075
1286-4854
DOI:10.1209/0295-5075/83/36002