Nature Communications (Sep 2021)
Narrow-band high-lying excitons with negative-mass electrons in monolayer WSe2
- Kai-Qiang Lin,
- Chin Shen Ong,
- Sebastian Bange,
- Paulo E. Faria Junior,
- Bo Peng,
- Jonas D. Ziegler,
- Jonas Zipfel,
- Christian Bäuml,
- Nicola Paradiso,
- Kenji Watanabe,
- Takashi Taniguchi,
- Christoph Strunk,
- Bartomeu Monserrat,
- Jaroslav Fabian,
- Alexey Chernikov,
- Diana Y. Qiu,
- Steven G. Louie,
- John M. Lupton
Affiliations
- Kai-Qiang Lin
- Department of Physics, University of Regensburg
- Chin Shen Ong
- Department of Physics, University of California at Berkeley
- Sebastian Bange
- Department of Physics, University of Regensburg
- Paulo E. Faria Junior
- Department of Physics, University of Regensburg
- Bo Peng
- Cavendish Laboratory, University of Cambridge
- Jonas D. Ziegler
- Department of Physics, University of Regensburg
- Jonas Zipfel
- Department of Physics, University of Regensburg
- Christian Bäuml
- Department of Physics, University of Regensburg
- Nicola Paradiso
- Department of Physics, University of Regensburg
- Kenji Watanabe
- Research Center for Functional Materials, National Institute for Materials Science
- Takashi Taniguchi
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science
- Christoph Strunk
- Department of Physics, University of Regensburg
- Bartomeu Monserrat
- Cavendish Laboratory, University of Cambridge
- Jaroslav Fabian
- Department of Physics, University of Regensburg
- Alexey Chernikov
- Department of Physics, University of Regensburg
- Diana Y. Qiu
- Department of Physics, University of California at Berkeley
- Steven G. Louie
- Department of Physics, University of California at Berkeley
- John M. Lupton
- Department of Physics, University of Regensburg
- DOI
- https://doi.org/10.1038/s41467-021-25499-2
- Journal volume & issue
-
Vol. 12,
no. 1
pp. 1 – 8
Abstract
Here, the authors report on evidence of an excitonic species formed by electrons in high-energy conduction band states with a negative effective mass, explaining previous observations of quantum interference phenomena in two-dimensional semiconductors.
