Conductance bistability of gold nanowires at room temperature

Manabu Kiguchi, Tatsuya Konishi, and Kei Murakoshi
Phys. Rev. B 73, 125406 – Published 9 March 2006

Abstract

Quantized conductance behavior of gold nanowires was studied under electrochemical potential control. We fabricated 1nm-long monoatomic wires in solution at room temperature. Electrochemical potential significantly affected the stability of the monoatomic wire and fractional conductance peak occurrence in the conductance histogram. We revealed that the hydrogen adsorption on gold monoatomic wires was a decisive factor of the fractional peak, which was originated from the dynamic structural transition between two bistable states of the monoatomic wire showing the unit and the fractional values of the conductance. We could tune the stability of these bistable states to make the fractional conductance state preferable.

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  • Received 10 January 2006

DOI:https://doi.org/10.1103/PhysRevB.73.125406

©2006 American Physical Society

Authors & Affiliations

Manabu Kiguchi1, Tatsuya Konishi1, and Kei Murakoshi1,2

  • 1Department of Chemistry, Graduate School of Science, Hokkaido University, Sapporo, Hokkaido 060-0810, Japan
  • 2Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency, Sapporo, Hokkaido 060-0810, Japan

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Issue

Vol. 73, Iss. 12 — 15 March 2006

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