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Quantized conductance behavior of Pt metal nanoconstrictions under electrochemical potential control

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/29766

Title: Quantized conductance behavior of Pt metal nanoconstrictions under electrochemical potential control
Authors: Konishi, Tatsuya Browse this author
Kiguchi, Manabu Browse this author
Murakoshi, Kei Browse this author
Keywords: Scanning tunneling microscopy
Electrochemical potential
Conductance quantization
Point contact
Hydrogen
Platinum
Issue Date: 15-Sep-2007
Publisher: Elsevier B.V.
Journal Title: Surface Science
Volume: 601
Issue: 18
Start Page: 4122
End Page: 4126
Publisher DOI: 10.1016/j.susc.2007.04.071
Abstract: We studied the quantized conductance behavior of mechanically fabricated Pt nanoconstrictions under electrochemical potential control in H2SO4, Na2SO4, and NaOH solutions. There was no clear feature in the conductance histogram, when the electrochemical potential of the nanoconstrictions was kept at the double layer or the under potential deposited hydrogen potential. At the hydrogen evolution potential, the conductance histograms showed clear features around 0.5 and 1 G0 in the H2SO4 solution. In Na2SO4, and NaOH solutions, a 1 G0 feature with a shoulder appeared in the histogram. The quantized conductance behavior of Pt nanoconstrictions could be controlled by the electrochemical potential and solution pH.
Relation: http://www.sciencedirect.com/science/journal/00396028
Type: article (author version)
URI: http://hdl.handle.net/2115/29766
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

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