HUSCAP logo Hokkaido Univ. logo

Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Science / Faculty of Science >
Peer-reviewed Journal Articles, etc >

Fabrication of sustainable Au mono-atomic wire showing conductance quantization in solution

Files in This Item:
TransMRS-J_v30p1215.pdf141.03 kBPDFView/Open
Please use this identifier to cite or link to this item:

Title: Fabrication of sustainable Au mono-atomic wire showing conductance quantization in solution
Authors: Kiguchi, Manabu Browse this author
Konishi, Tatsuya Browse this author
Miura, Shin-ichi Browse this author
Murakoshi, Kei Browse this author
Keywords: Mono atomic wire
Conductance quantization
Electrochemical potential
Ion adsorption
Issue Date: 2005
Publisher: Materials Research Society of Japan
Journal Title: Transactions of the Materials Research Society of Japan
Volume: 30
Issue: 4
Start Page: 1215
End Page: 1218
Abstract: Electric conductance of the Au nano constrictions was investigated in 0.1M Na2SO4 solution under electrochemical potential control. Point contact of Au showing the unit of the quantum conductance, G0 (2e^2/h), can be stretched as long as 1 nm when the electrochemical potential of the contact was kept at 0.5 V vs. Ag/AgCl. The result proves superior stability of Au mono atomic wire fabricated in solution. As the electrochemical potential changed to negative, the stretch length of the mono atomic wire decreased. The change of the stability was recovered as the potential became positive, indicating that the stability of the wire can be fully controlled by the electrochemical potential. In the time cause of the conductance trace, fluctuation was observed. The change in the value in the conductance was less than -15%. This fluctuation was attributed to the change in the number of atoms in the mono atomic wire. Observed changes in the conductance reflect the characteristics of the dynamical formation/deformation processes of the mono atomic wire showing conductance quantization in solution at room temperature.
Type: article (author version)
Appears in Collections:理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 木口 学

Export metadata:

OAI-PMH ( junii2 , jpcoar_1.0 )

MathJax is now OFF:


 - Hokkaido University