Kavli Affiliate: Giordano Scappucci
| First 5 Authors: Karina Hudson, Karina Hudson, , ,

| Summary:
Constricting transport through a one-dimensional quantum point contact in the quantum Hall regime enables gate-tunable selection of the edge modes propagating between voltage probe electrodes. Here we investigate the quantum Hall effect in a quantum point contact fabricated on low disorder strained germanium quantum wells. For increasing magnetic field, we observe Zeeman spin-split 1D ballistic hole transport evolving to integer quantum Hall states, with well-defined quantised conductance increasing in multiples of $e^2/h$ down to the first integer filling factor $ν=1$. These results establish strained germanium as a viable platform for complex experiments probing many-body states and quantum phase transitions.
| Search Query: arXiv Query: search_query=au:”Scappucci Giordano”&id_list=&start=0&max_results=3
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