| Issue |
Europhys. Lett.
Volume 69, Number 4, February 2005
|
|
|---|---|---|
| Page(s) | 623 - 628 | |
| Section | Condensed matter: electronic structure, electrical, magnetic, and optical properties | |
| DOI | https://doi.org/10.1209/epl/i2004-10371-6 | |
| Published online | 14 January 2005 | |
A new magnetoplasmon sound wave in a two-dimensional electron gas under electromagnetic radiation
School of Engineering Physics and Institute of Superconducting and Electronic Materials University of Wollongong - New South Wales 2522, Australia
Received:
19
August
2004
Accepted:
1
December
2004
We report a new magnetoplasmon mode and a sound-like collective excitation in two-dimensional electronic systems under a weak magnetic field and a low-frequency electromagnetic radiation. The analysis is based on the exact time-dependent wave functions and the exact relation between response function with and without radiation. The new mode discovered here can be used as a generating mechanism of high-frequency radiation from a system whose characteristic energy is low.
PACS: 77.22.Ch – Permittivity (dielectric function) / 78.20.Bh – Theory, models, and numerical simulation / 78.30.Fs – III-V and II-VI semiconductors
© EDP Sciences, 2005
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