Tunable transmission of quantum Hall edge channels with full degeneracy lifting in split-gated graphene devices
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.
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Publishing Group
2017-04-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/ncomms14983 |