Kukushkin, I. V. and Smet, J. H. and Schuh, Dieter and Wegscheider, Werner and Klitzing, Klaus von
Dispersion of the Composite-Fermion Cyclotron-Resonance Mode.
Physical Review Letters 98 (6), 066403.
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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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