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Tunable transmission of quantum Hall edge channels with full degeneracy lifting in split-gated graphene devices
Charge carriers in the quantum Hall regime propagate via one-dimensional conducting channels that form along the edges of a two-dimensional electron gas. Controlling their transmission through a gate-tunable constriction, also called quantum point contact, is fundamental for many coherent transport...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5399284/ https://www.ncbi.nlm.nih.gov/pubmed/28406152 http://dx.doi.org/10.1038/ncomms14983 |