Quantum dot manipulation in a single-walled carbon nanotube using a carbon nanotube gate

Dong Su Lee; Seung Joo Park; Sang Deok Park; Yung Woo Park; Marianna Kemell; Mikko Ritala; Johannes Svensson; Mats Jonson; Eleanor E.B. Campbell

doi:10.1063/1.2402119

Quantum dot manipulation in a single-walled carbon nanotube using a carbon nanotube gate

Dong Su Lee, Seung Joo Park, Sang Deok Park, Yung Woo Park, Marianna Kemell, Mikko Ritala, Johannes Svensson, Mats Jonson, Eleanor E.B. Campbell

Department of Physics

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

Cross junctions of carbon nanotubes (CNTs) separated by thin oxide layers have been fabricated, in which the top CNT is used as a local gate to control the electron transport through the lower CNT. Coulomb oscillation was observed in the lower CNTs at low temperatures. The gating field from the upper CNTs is seen to modulate the band structure in the lower CNTs, producing double quantum dot systems. The ability to modulate the electronic structure of CNTs in such a way opens up many possibilities for future electronic and logical nanodevices.

Original language	English
Article number	233107
Journal	Applied Physics Letters
Volume	89
Issue number	23
DOIs	https://doi.org/10.1063/1.2402119
State	Published - 2006

Bibliographical note

Funding Information:
This work was supported by the Nano Systems Institute-National Core Research Center (NSI-NCRC) program of KOSEF, Korea, by the Swedish Strategic Research Foundation (SSF), Vetenskapsrådet, and by STINT (Stiftelsen för internationalisering av högre utbildning och forskning). The authors acknowledge the help of Sang Wook Lee in preparing the measurements.

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title = "Quantum dot manipulation in a single-walled carbon nanotube using a carbon nanotube gate",

abstract = "Cross junctions of carbon nanotubes (CNTs) separated by thin oxide layers have been fabricated, in which the top CNT is used as a local gate to control the electron transport through the lower CNT. Coulomb oscillation was observed in the lower CNTs at low temperatures. The gating field from the upper CNTs is seen to modulate the band structure in the lower CNTs, producing double quantum dot systems. The ability to modulate the electronic structure of CNTs in such a way opens up many possibilities for future electronic and logical nanodevices.",

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volume = "89",

journal = "Applied Physics Letters",

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AU - Lee, Dong Su

AU - Park, Seung Joo

AU - Park, Sang Deok

AU - Park, Yung Woo

AU - Kemell, Marianna

AU - Ritala, Mikko

AU - Svensson, Johannes

AU - Jonson, Mats

AU - Campbell, Eleanor E.B.

N1 - Funding Information: This work was supported by the Nano Systems Institute-National Core Research Center (NSI-NCRC) program of KOSEF, Korea, by the Swedish Strategic Research Foundation (SSF), Vetenskapsrådet, and by STINT (Stiftelsen för internationalisering av högre utbildning och forskning). The authors acknowledge the help of Sang Wook Lee in preparing the measurements.

PY - 2006

Y1 - 2006

N2 - Cross junctions of carbon nanotubes (CNTs) separated by thin oxide layers have been fabricated, in which the top CNT is used as a local gate to control the electron transport through the lower CNT. Coulomb oscillation was observed in the lower CNTs at low temperatures. The gating field from the upper CNTs is seen to modulate the band structure in the lower CNTs, producing double quantum dot systems. The ability to modulate the electronic structure of CNTs in such a way opens up many possibilities for future electronic and logical nanodevices.

AB - Cross junctions of carbon nanotubes (CNTs) separated by thin oxide layers have been fabricated, in which the top CNT is used as a local gate to control the electron transport through the lower CNT. Coulomb oscillation was observed in the lower CNTs at low temperatures. The gating field from the upper CNTs is seen to modulate the band structure in the lower CNTs, producing double quantum dot systems. The ability to modulate the electronic structure of CNTs in such a way opens up many possibilities for future electronic and logical nanodevices.

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Quantum dot manipulation in a single-walled carbon nanotube using a carbon nanotube gate

Abstract

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