Electronic transport and quantum Hall effect in bipolar graphene p-n-p junction

Abstract

We have developed a device fabrication process to pattern graphene into nanostructures of arbitrary shape and control their electronic properties using local electrostatic gates. Electronic transport measurements have been used to characterize locally gated bipolar graphene $p$-$n$-$p$ junctions. We observe a series of fractional quantum Hall conductance plateaus at high magnetic fields as the local charge density is varied in the $p$ and $n$ regions. These fractional plateaus, originating from chiral edge states equilibration at the $p$-$n$ interfaces, exhibit sensitivity to inter-edge backscattering which is found to be strong for some of the plateuas and much weaker for other plateaus. We use this effect to explore the role of backscattering and estimate disorder strength in our graphene devices.

4 pages 4 figures, to appear in Phys. Rev. Lett. Original version arXiv:0705.3044v1 was separated and expanded to this current version and arXiv:0709.1731

References in corpus (20)

• Electric Field Effect in Atomically Thin Carbon Films
• Two-Dimensional Gas of Massless Dirac Fermions in Graphene
• The Raman Fingerprint of Graphene
• Experimental Observation of Quantum Hall Effect and Berry's Phase in Graphene
• Unconventional quantum Hall effect and Berry's phase of 2pi in bilayer graphene
• Valley filter and valley valve in graphene
• Electronic Properties of Disordered Two-Dimensional Carbon
• Unconventional Integer Quantum Hall effect in graphene
• Bipolar supercurrent in graphene
• Spin qubits in graphene quantum dots
• A Graphene Field-Effect Device
• Veselago Lens for Electrons: Focusing and Caustics in Graphene p-n Junctions
• Selective transmission of Dirac electrons and ballistic magnetoresistance of \textit{n-p} junctions in graphene
• Landau Level Splitting in Graphene in High Magnetic Fields
• Transport measurements across a tunable potential barrier in graphene
• Spin Filtered Edge States and Quantum Hall Effect in Graphene
• Quantum dots in graphene
• Quantized Transport in Graphene p-n Junctions in Magnetic Field
• Quantization of the diagonal resistance: Density gradients and the empirical resistance rule in a 2D system
• The longitudinal resistance of a quantum Hall system with a density gradient

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