학술논문
Magneto-Thermoelectric Transport in Graphene Quantum Dot with Strong Correlations
Document Type
Working Paper
Author
Source
Physical Review Letters 132, 246502 (2024)
Subject
Language
Abstract
Disorder at the etched edges of graphene quantum dots (GQD) enables random all-to-all interactions between localized charges in partially-filled Landau levels, providing a potential platform to realize the Sachdev-Ye-Kitaev (SYK) model. We use quantum Hall edge states in the graphene electrodes to measure electrical conductance and thermoelectric power across the GQD. We observe a rapid diminishing of electric conductance fluctuations and slowly decreasing thermoelectric power across the GQD with increasing temperature, consistent with recent theoretical predictions for the SYK regime.
Comment: 6 pages, 4 main figures; supplement has 24 pages, 10 figures
Comment: 6 pages, 4 main figures; supplement has 24 pages, 10 figures