Gate-tunable Veselago interference in a bipolar graphene microcavity

Xi Zhang; Wei Ren; Elliot Bell; Ziyan Zhu; Kan-Ting Tsai; Yujie Luo; Kenji Watanabe; Takashi Taniguchi; Efthimios Kaxiras; Mitchell Luskin; Ke Wang

doi:10.1038/s41467-022-34347-w

Nature Communications (Nov 2022)

Gate-tunable Veselago interference in a bipolar graphene microcavity

Xi Zhang,
Wei Ren,
Elliot Bell,
Ziyan Zhu,
Kan-Ting Tsai,
Yujie Luo,
Kenji Watanabe,
Takashi Taniguchi,
Efthimios Kaxiras,
Mitchell Luskin,
Ke Wang

Affiliations

Xi Zhang: School of Physics and Astronomy, University of Minnesota
Wei Ren: School of Physics and Astronomy, University of Minnesota
Elliot Bell: School of Physics and Astronomy, University of Minnesota
Ziyan Zhu: Department of Physics, Harvard University
Kan-Ting Tsai: School of Physics and Astronomy, University of Minnesota
Yujie Luo: Department of Electrical and Computer Engineering, University of Minnesota
Kenji Watanabe: Research Center for Functional Materials, National Institute for Materials Science
Takashi Taniguchi: International Center for Materials Nanoarchitectonics, National Institute for Materials Science
Efthimios Kaxiras: Department of Physics, Harvard University
Mitchell Luskin: School of Mathematics, University of Minnesota
Ke Wang: School of Physics and Astronomy, University of Minnesota

DOI: https://doi.org/10.1038/s41467-022-34347-w
Journal volume & issue: Vol. 13, no. 1
pp. 1 – 6

Abstract

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Charge carriers in graphene can be manipulated, e.g., collimated or focused, as in conventional optics but the efficiency of these processes remains low. Zhang et al. demonstrate interference of electrons in a novel graphene microcavity device and use it to enhance collimation efficiency of the electron flow.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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