Measurement of Topological Berry Phase in Highly Disordered Graphene

Abstract

We have observed the quantum Hall effect (QHE) and Shubnikov-de Haas (SdH) oscillations in highly disordered graphene at magnetic fields up to 65 T. Disorder was introduced by hydrogenation of graphene up to a ratio H/C $\approx 0.1\%$. The analysis of SdH oscillations and QHE indicates that the topological part of the Berry phase, proportional to the pseudo-spin winding number, is robust against introduction of disorder by hydrogenation in large scale graphene.

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Cited by in corpus (6)

• Driven dissipative dynamics and topology of quantum impurity systems
• Unconventional Features in the Quantum Hall Regime of Disordered Graphene: Percolating Impurity States and Hall Conductance Quantization
• Tuning hydrogen adsorption on graphene by gate voltage
• Quantum Hall effect in ac driven graphene: from half-integer to integer case
• Bipartite Fluctuations and Topology of Dirac and Weyl Systems
• Large magnetoresistance by Pauli blockade in hydrogenated graphene