Publication Type |
Journal Article |
School or College |
College of Science |
Department |
Physics |
Creator |
Mishchenko, Eugene |
Other Author |
Reizer, M. Yu.; Glazman, L. I. |
Title |
Plasmon attenuation and optical conductivity of a two-dimensional electron gas |
Date |
2004-05 |
Description |
In a ballistic two-dimensional electron gas, the Landau damping does not lead to plasmon attenuation in a broad interval of wave vectors q≤kF . Similarly, it does not contribute to the optical conductivity σ(ω,q) in a wide domain of its arguments, EF>ω>qvF , where EF , kF , and vF are, respectively, the Fermi energy, wave vector, and velocity of the electrons. We identify processes that result in the plasmon attenuation in the absence of Landau damping. These processes are: the excitation of two electron-hole pairs, phonon-assisted excitation of one pair, and a direct plasmon-phonon conversion. We evaluate the corresponding contributions to the plasmon linewidth and to the optical conductivity. |
Type |
Text |
Publisher |
American Physical Society |
Journal Title |
Physical Review B |
Volume |
69 |
Issue |
19 |
DOI |
10.1103/PhysRevB.69.195302 |
citatation_issn |
1098-0121 |
Subject |
Optical conductivity; Plasmon-phonon conversion; Landau damping |
Subject LCSH |
Plasmons; Phonons; Electron gas |
Language |
eng |
Bibliographic Citation |
Mishchenko, E., Reizer, M. Y., & Glazman, L. I. (2004). Plasmon attenuation and optical conductivity of a two-dimensional electron gas. Physical Review B - Condensed Matter and Materials Physics, 69(19), 195302. |
Rights Management |
(c) American Physical Society http://dx.doi.org/10.1103/PhysRevB.69.195302 |
Format Medium |
application/pdf |
Format Extent |
98,315 bytes |
Identifier |
ir-main,11803 |
ARK |
ark:/87278/s6br99kz |
Setname |
ir_uspace |
ID |
705226 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s6br99kz |