### Abstract

Capacitance distribution of {(Ni _{0.6}Nb _{0.4}) _{1-x}Zr _{x}} _{100-y}-H _{y} (x = 0.30, 0.35, 0.40, 0.45 and 0.50, 0 ≥ y ≥ 20) glassy alloy ribbons was carried out by ac impedance analysis at frequency of 1 kHz, in terms of a distributed constant equivalent circuit. The capacitance can be represented by oblique contour lines. The highest capacitance (1-11 μF) could be found near the point when x = 0.40, y = 10, which is a composition occurring room-temperature Coulomb oscillation, while capacitance of the composition (x =0.35, y =4) occurring ballistic transport was around 0.8 μF. The capacitance difference would be explained by an effect of hydrogen localization derived from morphology of distorted Zr-centered icosahedral Zr _{5}Ni _{5}Nb _{3} clusters and ideal Ni-centered clusters. The electrocapillarity equation showed that the specific capacitance between two electrodes increases parabolic with decreasing the distance, as a polarized glutinous liquid.

Original language | English |
---|---|

Pages (from-to) | 3848-3852 |

Number of pages | 5 |

Journal | Journal of Nanoscience and Nanotechnology |

Volume | 12 |

Issue number | 5 |

DOIs | |

Publication status | Published - 2012 |

### Fingerprint

### Keywords

- Capacitance
- Electrocapillarity
- Glassy Alloys
- Icosahedral Cluster

### ASJC Scopus subject areas

- Condensed Matter Physics
- Chemistry(all)
- Materials Science(all)
- Bioengineering
- Biomedical Engineering

### Cite this

*Journal of Nanoscience and Nanotechnology*,

*12*(5), 3848-3852. https://doi.org/10.1166/jnn.2012.5862

**Capacitance distribution of Ni-Nb-Zr-H glassy alloys.** / Fukuhara, Mikio; Yoshida, Hajime; Fujima, Nobuhisa; Kawarada, Hiroshi.

Research output: Contribution to journal › Article

*Journal of Nanoscience and Nanotechnology*, vol. 12, no. 5, pp. 3848-3852. https://doi.org/10.1166/jnn.2012.5862

}

TY - JOUR

T1 - Capacitance distribution of Ni-Nb-Zr-H glassy alloys

AU - Fukuhara, Mikio

AU - Yoshida, Hajime

AU - Fujima, Nobuhisa

AU - Kawarada, Hiroshi

PY - 2012

Y1 - 2012

N2 - Capacitance distribution of {(Ni 0.6Nb 0.4) 1-xZr x} 100-y-H y (x = 0.30, 0.35, 0.40, 0.45 and 0.50, 0 ≥ y ≥ 20) glassy alloy ribbons was carried out by ac impedance analysis at frequency of 1 kHz, in terms of a distributed constant equivalent circuit. The capacitance can be represented by oblique contour lines. The highest capacitance (1-11 μF) could be found near the point when x = 0.40, y = 10, which is a composition occurring room-temperature Coulomb oscillation, while capacitance of the composition (x =0.35, y =4) occurring ballistic transport was around 0.8 μF. The capacitance difference would be explained by an effect of hydrogen localization derived from morphology of distorted Zr-centered icosahedral Zr 5Ni 5Nb 3 clusters and ideal Ni-centered clusters. The electrocapillarity equation showed that the specific capacitance between two electrodes increases parabolic with decreasing the distance, as a polarized glutinous liquid.

AB - Capacitance distribution of {(Ni 0.6Nb 0.4) 1-xZr x} 100-y-H y (x = 0.30, 0.35, 0.40, 0.45 and 0.50, 0 ≥ y ≥ 20) glassy alloy ribbons was carried out by ac impedance analysis at frequency of 1 kHz, in terms of a distributed constant equivalent circuit. The capacitance can be represented by oblique contour lines. The highest capacitance (1-11 μF) could be found near the point when x = 0.40, y = 10, which is a composition occurring room-temperature Coulomb oscillation, while capacitance of the composition (x =0.35, y =4) occurring ballistic transport was around 0.8 μF. The capacitance difference would be explained by an effect of hydrogen localization derived from morphology of distorted Zr-centered icosahedral Zr 5Ni 5Nb 3 clusters and ideal Ni-centered clusters. The electrocapillarity equation showed that the specific capacitance between two electrodes increases parabolic with decreasing the distance, as a polarized glutinous liquid.

KW - Capacitance

KW - Electrocapillarity

KW - Glassy Alloys

KW - Icosahedral Cluster

UR - http://www.scopus.com/inward/record.url?scp=84863883894&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84863883894&partnerID=8YFLogxK

U2 - 10.1166/jnn.2012.5862

DO - 10.1166/jnn.2012.5862

M3 - Article

C2 - 22852315

AN - SCOPUS:84863883894

VL - 12

SP - 3848

EP - 3852

JO - Journal of Nanoscience and Nanotechnology

JF - Journal of Nanoscience and Nanotechnology

SN - 1533-4880

IS - 5

ER -