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Ultra-short suspended single-wall carbon nanotube transistors

Title:

Ultra-short suspended single-wall carbon nanotube transistors

Island, J. O. and Tayari, V. and Yiğen, S. and McRae, A. C. and Champagne, A. R. (2011) Ultra-short suspended single-wall carbon nanotube transistors. Applied Physics Letters, 99 (243106). ISSN 00036951

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Official URL: http://dx.doi.org/10.1063/1.3670055

Abstract

We describe a method to fabricate clean suspended single-wall carbon nanotube (SWCNT) transistors hosting a single quantum dot ranging in length from a few 10 s of nm down to ≈3 nm. We first align narrow gold bow-tie junctions on top of individual SWCNTs and suspend the devices. We then use a feedback-controlled electromigration to break the gold junctions and expose nm-sized sections of SWCNTs. We measure electron transport in these devices at low temperature and show that they form clean and tunable single-electron transistors. These ultra-short suspended transistors offer the prospect of studying THz oscillators with strong electron-vibron coupling.

Divisions:Concordia University > Faculty of Arts and Science > Physics
Item Type:Article
Refereed:Yes
Authors:Island, J. O. and Tayari, V. and Yiğen, S. and McRae, A. C. and Champagne, A. R.
Journal or Publication:Applied Physics Letters
Date:2011
ID Code:974576
Deposited By:KATHARINE HALL
Deposited On:20 Aug 2012 12:09
Last Modified:20 Aug 2012 12:09
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