Nonreciprocal Coulomb Drag between Quantum Wires in the quasi-1D regime
arXiv:2310.13626 · doi:10.1103/PhysRevB.109.085101
Abstract
Coulomb drag experiments have been an essential tool to study strongly interacting low-dimensional systems. Historically, this effect has been explained in terms of momentum transfer between electrons in the active and the passive layer. Here, we report Coulomb drag measurements between laterally coupled GaAs/AlGaAs quantum wires in the multiple 1D sub-band regime that break Onsager's reciprocity upon both layer and current direction reversal, in contrast to prior 1D Coulomb drag results. The drag signal shows nonlinear I-V characteristics, which are well characterized by a third-order polynomial fit. These findings are qualitatively consistent with a rectified drag signal induced by charge fluctuations. However, the nonmonotonic temperature dependence of this drag signal suggests that strong electron-electron interactions, expected within the Tomonaga-Luttinger liquid framework, remain important and standard interaction models are insufficient to capture the qualitative nature of rectified 1D Coulomb drag.
8 pages, 7 figures
References in corpus (15)
- Signatures of Majorana fermions in hybrid superconductor-semiconductor nanowire devices
- Tunable Supercurrent Through Semiconductor Nanowires
- Strong Coulomb drag and broken symmetry in double-layer graphene
- Spin-charge separation and localization in one-dimension
- Thermoelectric energy harvesting with quantum dots
- Probing spin-charge separation in a Tomonaga-Luttinger liquid
- Coulomb Drag in the Exciton Regime in Electron-Hole Bilayers
- Coulomb drag by small momentum transfer between quantum wires
- Giant Fluctuations of Coulomb Drag in a Bilayer System
- Coulomb drag in quantum circuits
- Coulomb drag between ballistic quantum wires
- Coulomb drag at zero temperature
- Coulomb Drag between a Carbon Nanotube and Monolayer Graphene
- From Luttinger liquid to Altshuler-Aronov anomaly in multi-channel quantum wires
- Andreev-Coulomb Drag in Coupled Quantum Dots