Frequency shift imaging of quantum dots with single-electron resolution

J. Zhu; M. Brink; P. L. McEuen

doi:10.1063/1.2139623

Frequency shift imaging of quantum dots with single-electron resolution

J. Zhu, M. Brink, P. L. McEuen

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32 Scopus citations

Abstract

We employ atomic force microscope-based frequency shift microscopy to study the electronic properties of quantum dots formed in carbon nanotubes. The nontransport detection scheme of frequency shift allows us to probe nearly isolated quantum dots in a few electron regime. At 4 K, we observe Coulomb oscillations of quantum dots with single-electron resolution and extract the charging energy of a quantum dot.

Original language	English (US)
Article number	242102
Pages (from-to)	1-3
Number of pages	3
Journal	Applied Physics Letters
Volume	87
Issue number	24
DOIs	https://doi.org/10.1063/1.2139623
State	Published - 2005

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.2139623

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title = "Frequency shift imaging of quantum dots with single-electron resolution",

abstract = "We employ atomic force microscope-based frequency shift microscopy to study the electronic properties of quantum dots formed in carbon nanotubes. The nontransport detection scheme of frequency shift allows us to probe nearly isolated quantum dots in a few electron regime. At 4 K, we observe Coulomb oscillations of quantum dots with single-electron resolution and extract the charging energy of a quantum dot.",

author = "J. Zhu and M. Brink and McEuen, {P. L.}",

note = "Funding Information: The authors thank Michael Woodside for discussions. This work is supported by the NSF through the Center for Nanoscale Systems and by NASA through the Institute for Nanoelectronics and Computing.",

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AB - We employ atomic force microscope-based frequency shift microscopy to study the electronic properties of quantum dots formed in carbon nanotubes. The nontransport detection scheme of frequency shift allows us to probe nearly isolated quantum dots in a few electron regime. At 4 K, we observe Coulomb oscillations of quantum dots with single-electron resolution and extract the charging energy of a quantum dot.

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Frequency shift imaging of quantum dots with single-electron resolution

Abstract

All Science Journal Classification (ASJC) codes

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