Filling-factor-dependent oscillations of the coupled intersubband plasmon-LO phonon mode in a tunneling coupled-bilayer system

Link:

https://doi.org/10.1103/physrevb.66.233302

Autor/in:

Erscheinungsjahr:

2002

Medientyp:

Text

Beschreibung:

We have investigated an (formula presented) tunneling coupled-bilayer heterostructure with magnetotransport and far-infrared spectroscopy. With a front gate the charge density could be tuned. A grating coupler was prepared to investigate the collective excitations. We observed an intersubband plasmon which is coupled to the GaAs LO phonon. In a magnetic field applied perpendicular to the two-dimensional electron gas plane, the mode exhibits a strong filling-factor-dependent oscillation of the resonance energy. © 2002 The American Physical Society.

Lizenz:

info:eu-repo/semantics/closedAccess

Quellsystem:

Forschungsinformationssystem der UHH

Interne Metadaten

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