Chirality probe of twisted bilayer graphene in the linear transport regime
arXiv:2307.03779 · doi:10.1021/acs.nanolett.4c00371
Abstract
We propose minimal transport experiments in the coherent regime that can probe the chirality of twisted moiré structures. We show that only with a third contact and in the presence of an in-plane magnetic field (or other time-reversal symmetry breaking effect), a chiral system may display non-reciprocal transport in the linear regime. We then propose to use the third lead as a voltage probe and show that opposite enantiomers give rise to different voltage drops on the third lead. Additionally, in the scenario of layer-discriminating contacts, the third lead can serve as a current probe, capable of detecting different handedness even in the absence of a magnetic field. In a complementary configuration, applying opposite voltages on the two layers of the third leads gives rise to a chiral (super)current in the absence of a source-drain voltage whose direction is determined by its chirality.
38 pages, 8 figures
References in corpus (22)
- Flat Bands in Slightly Twisted Bilayer Graphene
- A Josephson junction supercurrent diode
- Supercurrent diode effect and finite momentum superconductivity
- Zero-field superconducting diode effect in small-twist-angle trilayer graphene
- Supercurrent diode effect and magnetochiral anisotropy in few-layer NbSe
- Ubiquitous Superconducting Diode Effect in Superconductor Thin Films
- A Chirality-Based Quantum Leap
- Weyl, Dirac and high-fold chiral fermions in topological quantum materials
- Theory of zero-field superconducting diode effect in twisted trilayer graphene
- Chiral response of twisted bilayer graphene
- Chiral plasmons with twisted atomic bilayers
- Chirality induced Giant Unidirectional Magnetoresistance in Twisted Bilayer Graphene
- Superconducting diode effect in quasi-one-dimensional systems
- Time-Reversal Even Charge Hall Effect from Twisted Interface Coupling
- Plasmon-enhanced near-field chirality in twisted van der Waals heterostructures
- Chirality-induced spin texture switching in twisted bilayer graphene
- Change of chirality at magic angles of twisted bilayer graphene
- Theory of plasmonic edge states in chiral bilayer systems
- In-plane orbital magnetization as a probe for symmetry breaking in strained twisted bilayer graphene
- Intrinsic nonreciprocal bulk plasmons in noncentrosymmetric magnetic systems
- Neutral magic-angle bilayer graphene: Condon instability and chiral resonances
- Anomalous Electrodynamics and Quantum Geometry in the Dirac-Harper model for a Graphene Bilayer
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- Layer-Resolved Quantum Transport in Twisted Bilayer Graphene: Counterflow and Machine Learning Predictions
- Quantum transport in the presence of a chiral molecular potential
- The fate of disorder in twisted bilayer graphene near the magic angle
- Structural dependence of quantum transport properties on topological nodal-line semimetal bilayer borophene