Year: 2021
Type: article
Abstract: We investigate an electrostatically defined quantum point contact (QPC) in a high-mobility InSb twodimensional electron gas.Well-defined conductance plateaus are observed, and the subband structure of the QPC is extracted from finite-bias measurements.The Zeeman splitting is measured in both in-plane and out-of-plane magnetic fields.We find an in-plane g factor |g * | ≈ 40.The out-of-plane g factor is measured to be |g * ⊥ | ≈ 50, which is close to the g factor in the bulk.
Source: Physical Review Research
Institutions: ETH Zurich, Laboratory for Solid State Physics
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,625
OpenAlex ID: W4245323239