The effect of hydrogen content on ballistic transport behaviors in the Ni-Nb-Zr-H glassy alloys.
The electronic transport behaviors of (Ni(0.39)Nb(0.25)Zr(0.35))(100-) (x)H(x) (0 ≤ x < 23.5) glassy alloys with subnanostructural icosahedral Zr(5)Nb(5)Ni(3) 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.
Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan; E-Mail:  umemori@imr.tohoku.ac.jp.
Mikio
M
Fukuhara
Yoshimasa
Y
Umemori
D000497:Alloys / Q000737:chemistry*; D004579:Electron Transport; D006859:Hydrogen / Q000737:chemistry*; D009532:Nickel / Q000737:chemistry; D009556:Niobium / Q000737:chemistry; D012666:Semiconductors; D013696:Temperature; D015040:Zirconium / Q000737:chemistry
D000497:Alloys; D009556:Niobium; D009532:Nickel; D006859:Hydrogen; D015040:Zirconium