Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 287-294 |
| Seitenumfang | 8 |
| Fachzeitschrift | Europhysics Letters (EPL) |
| Jahrgang | 22 |
| Ausgabenummer | 4 |
| Publikationsstatus | Veröffentlicht - 1 Mai 1993 |
| Extern publiziert | Ja |
Abstract
The relationship between the mean energy of a two-dimensional electron gas and the first moment of their radiative recombination is investigated in the regimes of the integer and fractional quantum Hall effects. It is shown that the magnetic-field dependence of the first moment provides a method to measure the cyclotron, enhanced spin and quasi-particle energy gaps at the same time. This allows for a comparative analysis of the temperature dependence of these gaps. Upon increasing temperature an abrupt thermal collapse is observed for those energy gaps which are associated with electron-electron interactions.
ASJC Scopus Sachgebiete
- Physik und Astronomie (insg.)
- Allgemeine Physik und Astronomie
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in: Europhysics Letters (EPL), Jahrgang 22, Nr. 4, 01.05.1993, S. 287-294.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Thermal collapse of the fractional-quantum-hall-effect energy gaps
AU - Kukushkin, I. V.
AU - Pulsford, N. J.
AU - Von Klitzing, K.
AU - Haug, R. J.
AU - Ploog, K.
AU - Buhmann, H.
AU - Potemski, M.
AU - Martinez, G.
AU - Timofeev, V. B.
PY - 1993/5/1
Y1 - 1993/5/1
N2 - The relationship between the mean energy of a two-dimensional electron gas and the first moment of their radiative recombination is investigated in the regimes of the integer and fractional quantum Hall effects. It is shown that the magnetic-field dependence of the first moment provides a method to measure the cyclotron, enhanced spin and quasi-particle energy gaps at the same time. This allows for a comparative analysis of the temperature dependence of these gaps. Upon increasing temperature an abrupt thermal collapse is observed for those energy gaps which are associated with electron-electron interactions.
AB - The relationship between the mean energy of a two-dimensional electron gas and the first moment of their radiative recombination is investigated in the regimes of the integer and fractional quantum Hall effects. It is shown that the magnetic-field dependence of the first moment provides a method to measure the cyclotron, enhanced spin and quasi-particle energy gaps at the same time. This allows for a comparative analysis of the temperature dependence of these gaps. Upon increasing temperature an abrupt thermal collapse is observed for those energy gaps which are associated with electron-electron interactions.
UR - http://www.scopus.com/inward/record.url?scp=84910913491&partnerID=8YFLogxK
U2 - 10.1209/0295-5075/22/4/008
DO - 10.1209/0295-5075/22/4/008
M3 - Article
AN - SCOPUS:84910913491
VL - 22
SP - 287
EP - 294
JO - Europhysics Letters (EPL)
JF - Europhysics Letters (EPL)
SN - 0295-5075
IS - 4
ER -