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Phonon Scattering of Composite Fermions

D. V. Khveshchenko·M. Reizer
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Abstract

We study the principal aspects of the interaction between acoustic phonons and two-dimensional electrons in quantizing magnetic fields corresponding to even denominator fractions. Using the composite fermion approach we derive the vertex of the electron-phonon coupling mediated by the Chern-Simons gauge field. We estimate acoustic phonon contribution to electronic mobility, phonon-drag thermopower, and hot electron energy loss rate, which all, depending on the temperature regime, are either proportional to lower powers of T than their zero field counterparts, or enhanced by the same numerical factor as the coefficient of surface acoustic wave attenuation.

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D. V. Khveshchenko, M. Reizer. 1996-12-23. Phonon Scattering of Composite Fermions. https://doi.org/10.1103/physrevlett.78.3531

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