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Observation of Retardation Effects in the Spectrum of Two-Dimensional Plasmons

Kukushkin, I. V. and Smet, J. H. and Mikhailov, Sergey A. and Kulakovskii, D. V. and Klitzing, Klaus von and Wegscheider, Werner (2003) Observation of Retardation Effects in the Spectrum of Two-Dimensional Plasmons. Physical Review Letters (PRL) 90 (15), p. 156801.

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Abstract

Retardation effects, theoretically predicted more than 35 years ago, are observed in the spectrum of two-dimensional plasmons in high-electron-mobility GaAs/AlGaAs quantum wells. In zero magnetic field, a strong reduction of the resonant plasma frequency is observed due to the hybridization of the plasma and light modes. In a perpendicular magnetic field B, hybrid cyclotron-plasmon modes appear with a very unusual dependence of the frequency on B field. Experimental results are in excellent agreement with the theory.

Item Type:

Article

Institutions:

Physics > Institute of Experimental and Applied Physics > Retired Professors > Group Werner Wegscheider

Identification Number:

Value	Type
10.1103/PhysRevLett.90.156801	DOI

Related URLs:

URL	URL Type
http://link.aps.org/doi/10.1103/PhysRevLett.90.156801	Publisher

Classification:

Notation	Type
73.20.Mf, 71.36.+c	PACS

Keywords:

gallium arsenide, aluminium compounds, III-V semiconductors, semiconductor heterojunctions, two-dimensional electron gas, quantum Hall effect, semiconductor quantum dots, membranes

Subjects:

500 Science > 530 Physics

Status:

Published

Refereed:

Unknown

Created at the University of Regensburg:

Unknown

Owner:

Martin Kaiser

Deposited On:

14 Dec 2009 14:16