Tunable transmission of quantum Hall edge channels with full degeneracy lifting in split-gated graphene devices

Autor: Katrin Zimmermann, Anna Jordan, Frédéric Gay, Kenji Watanabe, Takashi Taniguchi, Zheng Han, Vincent Bouchiat, Hermann Sellier, Benjamin Sacépé
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Nature Communications, Vol 8, Iss 1, Pp 1-7 (2017)
Druh dokumentu: article
ISSN: 2041-1723
DOI: 10.1038/ncomms14983
Popis: Quantum point contacts are gate-tunable constrictions allowing for control of charge carrier transmission in 2D electron gases. Here, the authors fabricate a hBN/graphene/hBN van der Waals heterojunction to enable quantum point contact devices in the integer and fractional quantum Hall regimes.
Databáze: Directory of Open Access Journals