Nature Communications (Mar 2023)

Signatures of hot carriers and hot phonons in the re-entrant metallic and semiconducting states of Moiré-gapped graphene

  • Jubin Nathawat,
  • Ishiaka Mansaray,
  • Kohei Sakanashi,
  • Naoto Wada,
  • Michael D. Randle,
  • Shenchu Yin,
  • Keke He,
  • Nargess Arabchigavkani,
  • Ripudaman Dixit,
  • Bilal Barut,
  • Miao Zhao,
  • Harihara Ramamoorthy,
  • Ratchanok Somphonsane,
  • Gil-Ho Kim,
  • Kenji Watanabe,
  • Takashi Taniguchi,
  • Nobuyuki Aoki,
  • Jong E. Han,
  • Jonathan P. Bird

DOI
https://doi.org/10.1038/s41467-023-37292-4
Journal volume & issue
Vol. 14, no. 1
pp. 1 – 11

Abstract

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Significant attention has been devoted to understanding the low-electric-field properties of carriers in moiré graphene, but high-electric-field transport has not been as well explored. Here, the authors find non-monotonic transport behavior at moiré minigaps due to competition between inter-band tunneling and coupling to out-of-equilibrium phonons.