Magnetoplasmons in a High Electron Mobility GaAs/AlGaAs Heterostructure

• Authors: M. Białek , K. Karpierz , B. Piętka , M. Grynberg , J. Łusakowski , M. Czapkiewicz , K. Fronc , J. Wróbel , V. Umansky
• Languages of publication: EN

Abstracts

EN

We have observed a multimode spectrum of magnetoplasmons in the Hall bars processed on a high electron mobility GaAs/AlGaAs heterostructure. We have found that the dispersion relation of these excitation follows square root dependence. Calculated wavelength of the fundamental magnetoplasmon mode fits to the width of sample.

Keywords

EN

73.20.Mf

Discipline

• 73.20.Mf: Collective excitations (including excitons, polarons, plasmons and other charge-density excitations)(for collective excitations in quantum Hall effects, see 73.43.Lp)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2012
• Volume: 122
• Issue: 6
• Pages: 1096-1098

Dates

published

2012-12

Contributors

author

M. Białek

• Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Hoża 69, 00-681 Warsaw, Poland

author

K. Karpierz

• Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Hoża 69, 00-681 Warsaw, Poland

author

B. Piętka

• Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Hoża 69, 00-681 Warsaw, Poland

author

M. Grynberg

• Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Hoża 69, 00-681 Warsaw, Poland

author

J. Łusakowski

• Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Hoża 69, 00-681 Warsaw, Poland

author

M. Czapkiewicz

• Institute of Physics, PAS, al. Lotników 32/46, 02-668 Warsaw, Poland

author

K. Fronc

• Institute of Physics, PAS, al. Lotników 32/46, 02-668 Warsaw, Poland

author

J. Wróbel

• Institute of Physics, PAS, al. Lotników 32/46, 02-668 Warsaw, Poland

author

V. Umansky

• Weizmann Institute of Science, Rehevot 76100, Israel

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Identifiers

DOI

10.12693/APhysPolA.122.1096