Kavli Affiliate: Ke Wang
| First 5 Authors: Wei Ren, Xi Zhang, Jaden Ma, Xihe Han, Kenji Watanabe
| Summary:
We present a device architecture of hybrid-edge and dual-gated quantum point
contact. We demonstrate improved electrostatic control over the separation,
position, and coupling of each broken-symmetry compressible strip in graphene.
Via low-temperature magneto-transport measurement, we demonstrate selective
manipulation over the evolution, hybridization, and transmission of arbitrarily
chosen quantum Hall states in the channel. With gate-tunable tunneling
spectroscopy, we characterize the energy gap of each symmetry-broken quantum
Hall state with high resolution on the order of ~0.1 meV.
| Search Query: ArXiv Query: search_query=au:”Ke Wang”&id_list=&start=0&max_results=3