Twisted bilayer graphene fabricated by direct bonding in a high vacuum

Hitoshi Imamura, Anton Visikovskiy, Ryosuke Uotani, Takashi Kajiwara, Hiroshi Ando, Takushi Iimori, Kota Iwata, Toshio Miyamachi, Kan Nakatsuji, Kazuhiko Mase, Tetsuroh Shirasawa, Fumio Komori, Satoru Tanaka

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Twisted bilayer graphene (TBG), in which two monolayer graphene are stacked with an in-plane rotation angle, has recently become a hot topic due to unique electronic structures. TBG is normally produced in air by the tear-and-stack method of mechanical exfoliation and transferring graphene flakes, by which a sizable, millimeter-order area, and importantly clean interface between layers are hard to obtain. In this study, we resolved these problems by directly transferring the easy-to-exfoliate CVD-grown graphene on SiC substrate to graphene in a high vacuum without using any transfer assisting medium and observed electronic band modulations due to the strong interlayer coupling.

Original languageEnglish
Article number075004
JournalApplied Physics Express
Volume13
Issue number7
DOIs
Publication statusPublished - Jul 1 2020

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

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