Hiroyuki FUJIOKA, Shingo KATSUMOTO
We report detection of the edge channel of a two-dimensional electron gas (2DEG) in quantum Hall regime, through the measurement of the chemical potential variation and the compressibility of a 2DEG using a single-electron transistor (SET) on top of the 2DEG. The measurements at higher frequencies enabled us to detect the incompressible electronic states of the fractional quantum Hall effect (FQHE), the results of which indicate a method for resolving the edge channel of FQHE spatially. An incompressible electronic state of the fractional quantum Hall effect was also detected through relaxation time measurements at higher frequencies. These results demonstrate that it is possible to resolve the edge channel of the FQHE spatially by a combination of these techniques.
@article{7850e29b-9965-4df9-8a0d-f26a9ae0ce17,
title={Detection of Edge Conducting Channels in},
author={Hiroyuki FUJIOKA and Shingo KATSUMOTO},
year={2026},
language={en}
}TY - JOUR TI - Detection of Edge Conducting Channels in AU - Hiroyuki FUJIOKA AU - Shingo KATSUMOTO PY - 2026 LA - en ER -
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