High spatial resolution charge sensing of quantum Hall states
Abstract
Significance Our method integrates scanning tunneling microscopy (STM) spectroscopy with a monolayer graphene detector in the integer quantum Hall regime, achieving sub-meV energy resolution (0.3 meV at 1.4 K) and spatial resolution at the magnetic length scale (10 nm at 6 T). By combining high energy and spatial precision while minimizing sample perturbation from the STM tip, this technique enables nonperturbative and highly sensitive electrostatic potential mapping. We demonstrate its potential by resolving the charge response of composite fermions to a single impurity and observing charge distribution consistent with Friedel oscillation of composite Fermi liquid. This approach paves the way for studying quantum Hall liquids and exotic quasiparticles, such as anyons, offering a transformative tool for condensed matter physics research.
Read the paper
Related studies
- Quantum dots: synthesis, bioapplications, and toxicity
- A Guide to In Silico Drug Design
- Quantum Computing for Healthcare: A Review
- Automated in Silico Design of Homogeneous Catalysts
- Identification of Novel 3-Hydroxy-pyran-4-One Derivatives as Potent HIV-1 Integrase Inhibitors Using in silico Structure-Based Combinatorial Library Design Approach
- In silico structural elucidation of RNA-dependent RNA polymerase towards the identification of potential Crimean-Congo Hemorrhagic Fever Virus inhibitors
Go deeper in Evidence Hub
Evidence Hub adds a study data sheet (design, sample size, evidence level, key numbers), an AI summary and a chat grounded in the paper's text.