Nature Communications (Jan 2023)

Phonon-mediated room-temperature quantum Hall transport in graphene

  • Daniel Vaquero,
  • Vito Clericò,
  • Michael Schmitz,
  • Juan Antonio Delgado-Notario,
  • Adrian Martín-Ramos,
  • Juan Salvador-Sánchez,
  • Claudius S. A. Müller,
  • Km Rubi,
  • Kenji Watanabe,
  • Takashi Taniguchi,
  • Bernd Beschoten,
  • Christoph Stampfer,
  • Enrique Diez,
  • Mikhail I. Katsnelson,
  • Uli Zeitler,
  • Steffen Wiedmann,
  • Sergio Pezzini

DOI
https://doi.org/10.1038/s41467-023-35986-3
Journal volume & issue
Vol. 14, no. 1
pp. 1 – 6

Abstract

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Monolayer graphene can support the quantum Hall effect up to room temperature. Here, the authors provide evidence that graphene encapsulated in hexagonal boron nitride realizes a novel transport regime where dissipation in the quantum Hall phase is mediated predominantly by electron-phonon scattering rather than disorder scattering.