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|Title:||Quenching of the quantum hall effect in graphene with scrolled edges|
Castro Neto, A.H.
|Citation:||Cresti, A., Fogler, M.M., Guinea, F., Castro Neto, A.H., Roche, S. (2012-04-18). Quenching of the quantum hall effect in graphene with scrolled edges. Physical Review Letters 108 (16) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevLett.108.166602|
|Abstract:||Edge nanoscrolls are shown to strongly influence transport properties of suspended graphene in the quantum Hall regime. The relatively long arclength 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. © 2012 American Physical Society.|
|Source Title:||Physical Review Letters|
|Appears in Collections:||Staff Publications|
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