Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 474-477 |
| Seitenumfang | 4 |
| Fachzeitschrift | Physica E: Low-Dimensional Systems and Nanostructures |
| Jahrgang | 12 |
| Ausgabenummer | 1-4 |
| Publikationsstatus | Veröffentlicht - 1 Jan. 2002 |
| Veranstaltung | 14th International Conference on the - Prague, Tschechische Republik Dauer: 30 Juli 2001 → 3 Aug. 2001 |
Abstract
We have measured the absorption of ballistic non-equilibrium phonons by a two-dimensional electron system in the quantum Hall effect around filling factor ν = 1. Directly at ν = 1, the system is insensitive to phonons. However, moving slightly away from the resistance minimum, a strong ballistic phonon absorption starts to show up. We assign this to a drastic decrease of the excitation gap which in turn increases the absorption probability for ballistic phonons.
ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.)
- Elektronische, optische und magnetische Materialien
- Physik und Astronomie (insg.)
- Atom- und Molekularphysik sowie Optik
- Physik und Astronomie (insg.)
- Physik der kondensierten Materie
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in: Physica E: Low-Dimensional Systems and Nanostructures, Jahrgang 12, Nr. 1-4, 01.01.2002, S. 474-477.
Publikation: Beitrag in Fachzeitschrift › Konferenzaufsatz in Fachzeitschrift › Forschung › Peer-Review
}
TY - JOUR
T1 - Phonon excitation of a two-dimensional electron system around ν = 1
AU - Schulze-Wischeler, F.
AU - Zeitler, U.
AU - Hohls, F.
AU - Haug, R. J.
AU - Reuter, D.
AU - Wieck, A. D.
N1 - Funding information: Part of this work has been supported by the DFG (ZE 463/3-1).
PY - 2002/1/1
Y1 - 2002/1/1
N2 - We have measured the absorption of ballistic non-equilibrium phonons by a two-dimensional electron system in the quantum Hall effect around filling factor ν = 1. Directly at ν = 1, the system is insensitive to phonons. However, moving slightly away from the resistance minimum, a strong ballistic phonon absorption starts to show up. We assign this to a drastic decrease of the excitation gap which in turn increases the absorption probability for ballistic phonons.
AB - We have measured the absorption of ballistic non-equilibrium phonons by a two-dimensional electron system in the quantum Hall effect around filling factor ν = 1. Directly at ν = 1, the system is insensitive to phonons. However, moving slightly away from the resistance minimum, a strong ballistic phonon absorption starts to show up. We assign this to a drastic decrease of the excitation gap which in turn increases the absorption probability for ballistic phonons.
KW - Phonons
KW - Quantum Hall effect
KW - Skyrmioms
UR - http://www.scopus.com/inward/record.url?scp=0035239468&partnerID=8YFLogxK
U2 - 10.1016/S1386-9477(01)00342-3
DO - 10.1016/S1386-9477(01)00342-3
M3 - Conference article
AN - SCOPUS:0035239468
VL - 12
SP - 474
EP - 477
JO - Physica E: Low-Dimensional Systems and Nanostructures
JF - Physica E: Low-Dimensional Systems and Nanostructures
SN - 1386-9477
IS - 1-4
T2 - 14th International Conference on the
Y2 - 30 July 2001 through 3 August 2001
ER -