Abstract
The electronic transport behaviors of (Ni0.39Nb0.25Zr0.35)100−xHx (0 ≤ x < 23.5) glassy alloys with subnanostructural icosahedral Zr5Nb5Ni3 clusters have been studied as a function of hydrogen content. These alloys show semiconducting, electric current-induced voltage (Coulomb) oscillation and ballistic transport behaviors. Coulomb oscillation and ballistic transport occur at hydrogen contents between 6.7 and 13.5 at% and between 13.5 and 21.2 at%, respectively. These results suggest that the localization effect of hydrogen in the clusters plays an important role in various electron transport phenomena.
Highlights
Glassy alloys are peculiar metallic alloys because they lack, on the nanoscale, the long-range translational order of crystalline alloys [1]
We postulated the existence of macroscopic quantum electron tunnels passing along the millimeter-sized zigzag paths of atomic bond arrays with a large capacitance among Ni-centered ideal [4] and Zr-centered distorted [3,5] icosahedral Zr5Ni5Nb3 clusters for ballistic transport and Coulomb oscillation, respectively, the amorphous structure in glassy alloys is composed of a large number of low symmetry-clusters located around the main icosahedral ones
We report the effect of hydrogen content on ballistic transport behaviors in the
Summary
Glassy alloys are peculiar metallic alloys because they lack, on the nanoscale, the long-range translational order of crystalline alloys [1]. We postulated the existence of macroscopic quantum electron tunnels passing along the millimeter-sized zigzag paths of atomic bond arrays with a large capacitance (of the order of several femtofarad) among Ni-centered ideal [4] and Zr-centered distorted [3,5] icosahedral Zr5Ni5Nb3 clusters for ballistic transport and Coulomb oscillation, respectively, the amorphous structure in glassy alloys is composed of a large number of low symmetry-clusters located around the main icosahedral ones. Ni39Nb25Zr35 glassy alloys with subnanometer-scale sized clusters, as a representative composition for ballistic behavior. This superior conducting behavior resembles the ballistic transport observed in one-dimensional, nanometer-scale channels, such as quantum wires [6], carbon nanotubes [7,8] and. No research work has been carried out on this subject for glassy alloys with hydrogen, as far as we know
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
