The far-infrared absorption of a periodic 2DEG in the transition regime between weak and strong modulation

Details The far-infrared absorption of a periodic 2DEG in the transition regime between weak and strong modulation The far-infrared absorption of a periodic 2DEG in the transition regime between weak and strong modulation

1997-10-21

arxiv.org/abs/cond-mat/9710219v1

Physica E 1, 235 (1998)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages with included 2 ps-figures, contribution to "Novel Physics in Low-Dimensional Electron Systems" Dresden, July 1997. To

Scientific paper

10.1016/S1386-9477(97)00049-0

We study the optical absorption of arrays of quantum dots and antidots in a perpendicular homogeneous magnetic field. The electronic system is described quantum mechanically using a Hartree approximation for the mutual Coulomb interaction of the electrons. The evolution of the absorption is traced from the homogeneous to the strongly modulated case identifying the ensuing collective modes, the magnetoplasmons, and their correlations with inherent length scales of the system.

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