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PubMed Publications| Keyword search (4,164 papers available) |  |
"Champagne AR" Authored Publications:
| Title | Authors | PubMed ID | |
|---|---|---|---|
| 1 | Mechanical Control of Quantum Transport in Graphene | McRae AC; Wei G; Huang L; Yigen S; Tayari V; Champagne AR; | 38558481 PHYSICS |
| 2 | Few-hundred GHz carbon nanotube nanoelectromechanical systems (NEMS). | Island JO, Tayari V, McRae AC, Champagne AR | 22888989 PHYSICS |
| 3 | Wiedemann-Franz relation and thermal-transistor effect in suspended graphene. | Yigen S, Champagne AR | 24341325 PHYSICS |
| 4 | Tailoring 10 nm scale suspended graphene junctions and quantum dots. | Tayari V, McRae AC, Yigen S, Island JO, Porter JM, Champagne AR | 25490053 PHYSICS |
| 5 | Giant electron-hole transport asymmetry in ultra-short quantum transistors. | McRae AC, Tayari V, Porter JM, Champagne AR | 28561024 PHYSICS |
| Title: | Mechanical Control of Quantum Transport in Graphene | ||||
| Authors: | McRae AC, Wei G, Huang L, Yigen S, Tayari V, Champagne AR | ||||
| Link: | https://pubmed.ncbi.nlm.nih.gov/38558481/ | ||||
| DOI: | 10.1002/adma.202313629 | ||||
| Publication: | Advanced materials (Deerfield Beach, Fla.) | ||||
| Keywords: | 2DM; gauge potential; graphene; quantum transport; straintronics; transistor; | ||||
| PMID: | 38558481 | Category: | Date Added: | 2024-04-01 | |
| Dept Affiliation: |
PHYSICS
1 Department of Physics, Concordia University, Montréal, Québec, H4B 1R6, Canada. |
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Description: |
2D materials (2DMs) are fundamentally electro-mechanical systems. Their environment unavoidably strains them and modifies their quantum transport properties. For instance, a simple uniaxial strain can completely turn off the conductance of ballistic graphene or switch on/off the superconducting phase of magic-angle bilayer graphene. This article reports measurements of quantum transport in strained graphene transistors which agree quantitatively with models based on mechanically-induced gauge potentials. A scalar potential is mechanically induced in situ to modify graphene's work function by up to 25 meV. Mechanically generated vector potentials suppress the ballistic conductance of graphene by up to 30% and control its quantum interferences. The data are measured with a custom experimental platform able to precisely tune both the mechanics and electrostatics of suspended graphene transistors at low-temperature over a broad range of strain (up to 2.6%). This work opens many opportunities to harness quantitative strain effects in 2DM quantum transport and technologies. |
