Antichiral states in twisted graphene multilayers

Denner, M. Michael; Lado, Jose L.; Zilberberg, Oded

Antichiral states in twisted graphene multilayers

Dateien

Denner_2-fy171zsbjlt51.pdfGröße: 1.57 MBDownloads: 103

Datum

2020

Autor:innen

Denner, M. Michael

Lado, Jose L.

Zilberberg, Oded

Open Access-Veröffentlichung

Open Access Gold

Sammlungen

Physik

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Physical Review Research. American Physical Society. 2020, 2(4), 043190. eISSN 2643-1564. Available under: doi: 10.1103/PhysRevResearch.2.043190

Zusammenfassung

The advent of topological phases of matter revealed a variety of observed boundary phenomena, such as chiral and helical modes found at the edges of two-dimensional (2D) topological insulators. Antichiral states in 2D semimetals, i.e., copropagating edge modes on opposite edges compensated by a counterpropagating bulk current, are also predicted, but, to date, no realization of such states in a solid-state system has been found. Here, we put forward a procedure to realize antichiral states in twisted van der Waals multilayers, by combining the electronic Dirac-cone spectra of each layer through the combination of the orbital moiré superstructure, an in-plane magnetic field, and interlayer bias voltage. In particular, we demonstrate that a twisted van der Waals heterostructure consisting of graphene/two layers of hexagonal boron nitride [(hBN)₂]/graphene will show antichiral states at in-plane magnetic fields of 8 T, for a rotation angle of 0.2∘ between the graphene layers. Our findings engender a controllable procedure to engineer antichiral states in solid-state systems, as well as in quantum engineered metamaterials.

Fachgebiet (DDC)

530 Physik

Zitieren

ISO 690

DENNER, M. Michael, Jose L. LADO, Oded ZILBERBERG, 2020. Antichiral states in twisted graphene multilayers. In: Physical Review Research. American Physical Society. 2020, 2(4), 043190. eISSN 2643-1564. Available under: doi: 10.1103/PhysRevResearch.2.043190

BibTex

@article{Denner2020Antic-55009,
  year={2020},
  doi={10.1103/PhysRevResearch.2.043190},
  title={Antichiral states in twisted graphene multilayers},
  number={4},
  volume={2},
  journal={Physical Review Research},
  author={Denner, M. Michael and Lado, Jose L. and Zilberberg, Oded},
  note={Article Number: 043190}
}

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