Abstract
The electronic transport behaviors of (Ni0.39Nb0.25Zr0.35)100−yHy (0≤y≤15) glassy alloys, produced by rotating (or quenching) speeds of 3000 and 10,000rpm, have been studied as a function of hydrogen content. These alloys show semiconducting, superior ballistic transport, superconducting and electric current-induced Coulomb oscillation, as hydrogen content increases. The resistivity for (Ni0.39Nb0.25Zr0.35)97.8H2.2 alloy, produced by rotating speed of 10,000rpm, displayed 0.1nΩcm, which is 0.01% of silver (1.62μΩcm) at room temperature, between 40 and 252K. The Coulomb oscillation of the 10,000rpm-(Ni0.39Nb0.25Zr0.35)95.2H4.8 alloy is about 4-fold larger than that of the 3000rpm-(Ni0.39Nb0.25Zr0.35)91.1H8.9 alloy. Supercooling of the molten alloy induces a superior ballistic conductor and a room-temperature Coulomb oscillation at lower and higher hydrogen contents, respectively.
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