Nonequilibrium breakdown of quantum Hall state in graphene

Singh, Vibhor ; Deshmukh, Mandar M. (2009) Nonequilibrium breakdown of quantum Hall state in graphene Physical Review B: Condensed Matter and Materials Physics, 80 (8). ISSN 1098-0121

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In this Rapid Communication we experimentally probe the nonequilibrium breakdown of the quantum Hall state in monolayer graphene by injecting a high current density (∼1 A/m). The measured critical currents for dissipationless transport in the vicinity of integer filling factors show a dependence on filling factor. The breakdown can be understood in terms of inter Landau level (LL) scattering resulting from mixing of wave functions of different LLs. To further study the effect of transverse electric field, we measured the transverse resistance between the ν=2 to ν=6 plateau transition for different bias currents and observed an invariant point.

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Source:Copyright of this article belongs to American Physical Society.
ID Code:117659
Deposited On:29 Apr 2021 05:59
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