Dispersion of the Composite-Fermion Cyclotron-Resonance Mode

DOI zum Zitieren dieses Dokuments:: 10.5283/epub.12465

Kukushkin, I. V. ; Smet, J. H. ; Schuh, Dieter ; Wegscheider, Werner ; Klitzing, Klaus von

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Veröffentlichungsdatum dieses Volltextes: 25 Jan 2010 13:39

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Zusammenfassung

The dispersion of the composite-fermion cyclotron-resonance mode is measured with an optical detection scheme under the combined excitation of microwave radiation and a surface acoustic wave from an interdigital transducer. The slowly traveling surface wave defines the transferred wave vector. Momenta up to 108 m-1 are accessible. The cyclotron-resonance mode exhibits strong negative dispersion, ...