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Quenching of the quantum Hall effect in graphene with scrolled edges
- Source :
- Cresti, Alessandro; Fogler, Michael M; Guinea, Francisco; Castro Neto, Antonio H; & Roche, Stephan. (2012). Quenching of the Quantum Hall Effect in Graphene with Scrolled Edges. Physical Review Letters, 108(16). doi: 10.1103/PhysRevLett.108.166602. UC San Diego: Retrieved from: http://www.escholarship.org/uc/item/95n1468x
- Publication Year :
- 2011
-
Abstract
- Edge nanoscrolls are shown to strongly influence transport properties of suspended graphene in the quantum Hall regime. The relatively long arc length of the scrolls in combination with their compact transverse size results in formation of many nonchiral transport channels in the scrolls. They short-circuit the bulk current paths and inhibit the observation of the quantized two-terminal resistance. Unlike competing theoretical proposals, this mechanism of disrupting the Hall quantization in suspended graphene is not caused by ill-chosen placement of the contacts, singular elastic strains, or a small sample size.
- Subjects :
- Physics
Condensed Matter - Mesoscale and Nanoscale Physics
Condensed matter physics
Graphene
General Physics and Astronomy
FOS: Physical sciences
Small sample
Quantum Hall effect
law.invention
Quantization (physics)
Transverse plane
law
Quantum mechanics
Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
Physical Sciences and Mathematics
Short circuit
Subjects
Details
- ISSN :
- 10797114
- Volume :
- 108
- Issue :
- 16
- Database :
- OpenAIRE
- Journal :
- Physical review letters
- Accession number :
- edsair.doi.dedup.....bd0bf023adce1b1fc12f7f026d60632d