Single electron on a nanodot in a double-barrier tunneling structure observed by noncontact atomic-force spectroscopy

A single electron has been observed on a nanodot in a double-barrier tunneling structure by noncontact atomic-force microscopy at fixed separation. Frequency shift-voltage dependence of an Au-coated cantilever/vacuum/1-decanethiol protected Au nanodot/1-octanethiol self-assembled monolayer/Au substr...

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Bibliographic Details
Published in:Physical review letters 2006-01, Vol.96 (1), p.016108, Article 016108
Main Authors: Azuma, Yasuo, Kanehara, Masayuki, Teranishi, Toshiharu, Majima, Yutaka
Format: Article
Language:English
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Summary:A single electron has been observed on a nanodot in a double-barrier tunneling structure by noncontact atomic-force microscopy at fixed separation. Frequency shift-voltage dependence of an Au-coated cantilever/vacuum/1-decanethiol protected Au nanodot/1-octanethiol self-assembled monolayer/Au substrate structure deviates from the theoretical parabolic curve, which is attributed to the change in the number of quantized electrons on the Au nanodot caused by the Coulomb blockade phenomena.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.96.016108