Details
| Original language | English |
|---|---|
| Pages (from-to) | 474-477 |
| Number of pages | 4 |
| Journal | Physica E: Low-Dimensional Systems and Nanostructures |
| Volume | 12 |
| Issue number | 1-4 |
| Publication status | Published - 1 Jan 2002 |
| Event | 14th International Conference on the - Prague, Czech Republic Duration: 30 Jul 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.
Keywords
- Phonons, Quantum Hall effect, Skyrmioms
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
- Physics and Astronomy(all)
- Condensed Matter Physics
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In: Physica E: Low-Dimensional Systems and Nanostructures, Vol. 12, No. 1-4, 01.01.2002, p. 474-477.
Research output: Contribution to journal › Conference article › Research › 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 -