Keyword search (3,448 papers available)


Few-hundred GHz carbon nanotube nanoelectromechanical systems (NEMS).

Author(s): Island JO, Tayari V, McRae AC, Champagne AR

Nano Lett. 2012 Sep 12;12(9):4564-9 Authors: Island JO, Tayari V, McRae AC, Champagne AR

Article GUID: 22888989
Wiedemann-Franz relation and thermal-transistor effect in suspended graphene.

Author(s): Yigen S, Champagne AR

Nano Lett. 2014 Jan 08;14(1):289-93 Authors: Yiğen S, Champagne AR

Article GUID: 24341325
Tailoring 10 nm scale suspended graphene junctions and quantum dots.

Author(s): Tayari V, McRae AC, Yigen S, Island JO, Porter JM, Champagne AR

Nano Lett. 2015 Jan 14;15(1):114-9 Authors: Tayari V, McRae AC, Yiğen S, Island JO, Porter JM, Champagne AR

Article GUID: 25490053
Giant electron-hole transport asymmetry in ultra-short quantum transistors.

Author(s): McRae AC, Tayari V, Porter JM, Champagne AR

Nat Commun. 2017 05 31;8:15491 Authors: McRae AC, Tayari V, Porter JM, Champagne AR

Article GUID: 28561024
Title:Tailoring 10 nm scale suspended graphene junctions and quantum dots.
Authors:Tayari V,  McRae AC,  Yigen S,  Island JO,  Porter JM,  Champagne AR
Link:https://www.ncbi.nlm.nih.gov/pubmed/25490053?dopt=Abstract
Category:Nano Lett
PMID:25490053
Dept Affiliation: PHYSICS
1 Department of Physics, Concordia University , Montréal, Québec H4B 1R6, Canada.

Description:

Tailoring 10 nm scale suspended graphene junctions and quantum dots.

Nano Lett. 2015 Jan 14;15(1):114-9

Authors: Tayari V, McRae AC, Yigen S, Island JO, Porter JM, Champagne AR

Abstract

The possibility to make 10 nm scale, and low-disorder, suspended graphene devices would open up many possibilities to study and make use of strongly coupled quantum electronics, quantum mechanics, and optics. We present a versatile method, based on the electromigration of gold-on-graphene bow-tie bridges, to fabricate low-disorder suspended graphene junctions and quantum dots with lengths ranging from 6 nm up to 55 nm. We control the length of the junctions, and shape of their gold contacts by adjusting the power at which the electromigration process is allowed to avalanche. Using carefully engineered gold contacts and a nonuniform downward electrostatic force, we can controllably tear the width of suspended graphene channels from over 100 nm down to 27 nm. We demonstrate that this lateral confinement creates high-quality suspended quantum dots. This fabrication method could be extended to other two-dimensional materials.

PMID: 25490053 [PubMed]