Abstract
We analyze the conductance fluctuations observed in the quantum Hall regime for a bulk two-dimensional electron system in a Corbino geometry. We find that characteristics like the power spectral density and the temperature dependence agree well with simple expectations for universal conductance fluctuations in metals, while the observed amplitude is reduced. In addition, the dephasing length (formula presented) which governs the temperature dependence of the fluctuations, is surprisingly different from the scaling length (formula presented) governing the width of the quantum Hall plateau transition.
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 073304 |
| Seiten (von - bis) | 1-4 |
| Seitenumfang | 4 |
| Fachzeitschrift | Physical Review B - Condensed Matter and Materials Physics |
| Jahrgang | 66 |
| Ausgabenummer | 7 |
| DOIs | |
| Publikationsstatus | Veröffentlicht - 15 Aug. 2002 |
ASJC Scopus Sachgebiete
- Elektronische, optische und magnetische Materialien
- Physik der kondensierten Materie
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