Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 073304 |
| Seiten (von - bis) | 1-4 |
| Seitenumfang | 4 |
| Fachzeitschrift | Physical Review B - Condensed Matter and Materials Physics |
| Jahrgang | 66 |
| Ausgabenummer | 7 |
| Publikationsstatus | Veröffentlicht - 15 Aug. 2002 |
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.
ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.)
- Elektronische, optische und magnetische Materialien
- Physik und Astronomie (insg.)
- Physik der kondensierten Materie
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in: Physical Review B - Condensed Matter and Materials Physics, Jahrgang 66, Nr. 7, 073304, 15.08.2002, S. 1-4.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Conductance fluctuations at the quantum Hall plateau transition
AU - Hohls, F.
AU - Zeitler, U.
AU - Haug, R. J.
PY - 2002/8/15
Y1 - 2002/8/15
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85038962168&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.66.073304
DO - 10.1103/PhysRevB.66.073304
M3 - Article
AN - SCOPUS:85038962168
VL - 66
SP - 1
EP - 4
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
SN - 1098-0121
IS - 7
M1 - 073304
ER -