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Fabrication of sustainable Au mono-atomic wire showing conductance quantization in solution
| 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 | | Anion |
| 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) |
| URI: | http://hdl.handle.net/2115/14479 |
| 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)
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Submitter: 木口 学
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