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Magnetoplasmons of the two-dimensional electron system in a parabolic channel over liquid helium
| Content Provider | Semantic Scholar |
|---|---|
| Author | Ramos, Antônio Carlos Alonge Balev, Oleg G. Studart, Nelson |
| Copyright Year | 2004 |
| Abstract | Magnetoplasmon waves of the nondegenerate two-dimensional electron system confined in a parabolic channel over liquid helium are studied in the ultra quantum limit (only the lowest spin-split Landau level is occupied) andstrong magnetic fields. It is shown that the dispersion relations and spatial structures have the characteristic scale l T = √2k B T/m*Ω 2 »l 0 , where Ω is the confinement frequency and l 0 is the magnetic length. We find a rich spectrum of low-frequency excited acoustical modes whose phase velocities exhibit anticrossings as a function of the metal gate distance d, for d «l T . It is shown that appearance of the anticrossings has essentially a quantum nature combined with the effect of the electron-electron interaction. In order to be able to discuss the conditions to detect the modes we determine the mode dissipation and compare our results with experimental data. |
| Starting Page | 775 |
| Ending Page | 778 |
| Page Count | 4 |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/j.physe.2003.12.121 |
| Volume Number | 22 |
| Alternate Webpage(s) | http://www.issp.u-tokyo.ac.jp/public/ep2ds-15/Abstracts/0074.pdf |
| Alternate Webpage(s) | https://doi.org/10.1016/j.physe.2003.12.121 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
