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Dispersion of the Composite-Fermion Cyclotron-Resonance Mode

DOI to cite this document:
Kukushkin, I. V. ; Smet, J. H. ; Schuh, Dieter ; Wegscheider, Werner ; Klitzing, Klaus von
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Date of publication of this fulltext: 25 Jan 2010 13:39


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, ...


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