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

Research output: Contribution to journalArticlepeer-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 languageEnglish
Article number233107
JournalApplied Physics Letters
Volume89
Issue number23
DOIs
StatePublished - 2006

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