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 $nu=1$. 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:”Giordano Scappucci”&id_list=&start=0&max_results=3