Measurements of the effective mass and scattering times of composite fermions from magnetotransport analysis
- 21 March 1994
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 72 (12), 1906-1909
- https://doi.org/10.1103/physrevlett.72.1906
Abstract
An experimental analysis of the fractional quantum Hall effect is described in which oscillations in are treated as Shubnikov–de Haas oscillations of the composite fermions (CF) formed by a flux attachment transformation. We find a CF effective mass of 0.5 at zero effective field which increases weakly with effective magnetic field at a rate independent of carrier density. The CF quantum scattering times are the same as for the underlying single particle electron states.
Keywords
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