Magnetic Field Inducing Zeeman Splitting and Anomalous Conductance Reduction of Half-integer Quantized Plateaus in InAs Quantum Wires
arXiv:1707.09515 · doi:10.1103/PhysRevB.96.201404
Abstract
We report on magnetic field dependence of half-integer quantized conductance plateaus (HQPs) in InAs quantum wires. We observed HQPs at zero applied magnetic field in InAs quantum wires fabricated from a high-quality InAs quantum well. The application of in-plane magnetic field causes Zeeman splitting of the HQP features, indicating that the origin of the observed HQP is not spontaneous spin polarization. Additionally we observe that conductance of the split HQPs decreases gradually as the in-plane magnetic field increases. We finally assume electron-electron interaction as a possible mechanism to account for the zero-field HQPs and the anomalous field dependence.
References in corpus (10)
- Superconducting proximity effect and Majorana fermions at the surface of a topological insulator
- Signatures of Majorana fermions in hybrid superconductor-semiconductor nanowire devices
- Evidence of Majorana fermions in an Al - InAs nanowire topological superconductor
- Spin-selective Peierls transition in interacting one-dimensional conductors with spin-orbit interaction
- Nuclear Magnetism and Electronic Order in 13C Nanotubes
- Spin-Incoherent Transport in Quantum Wires
- Gating of high-mobility InAs metamorphic heterostructures
- Enhanced Zeeman splitting in Ga0.25In0.75As quantum point contacts
- Characterization of spin-orbit interactions of GaAs heavy holes using a quantum point contact
- An apparent metal insulator transition in high mobility 2D InAs heterostructures