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Local field correction effects on quasi-particle inelastic scattering rate in a coupled-quantum-layers system at finite temperature

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Abstract

This paper reports a theoretical study on local field correction effects on the temperature-dependent intra-layer inelastic scattering rate of interacting electrons in a coupled-quantum-wells structure. The temperature dependent dynamic dielectric function is calculated using random phase approximation. In order to consider the short-range effects of exchange–correlation holes around electrons, we employ the Hubbard, finite-temperature Hubbard and STLS approximations. Finally, the quasi-particle inelastic scattering rate is calculated using the imaginary part of the electron self-energy within the GW method. The results suggest that employing a local field correction causes reductions in the quasi-particle inelastic scattering rate of electrons in a coupled-quantum-wells, at any temperature, wave vector and electron density.

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Authors and Affiliations

  1. Department of Physics, Payamenoor University, P.O. Box 19395-3697, Tehran, Iran

    Vahdat Rafee, Alireza Razeghizadeh & Abdolrasoul Gharaati

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  1. Vahdat Rafee
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  2. Alireza Razeghizadeh
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  3. Abdolrasoul Gharaati
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Correspondence to Vahdat Rafee.

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Rafee, V., Razeghizadeh, A. & Gharaati, A. Local field correction effects on quasi-particle inelastic scattering rate in a coupled-quantum-layers system at finite temperature. Indian J Phys 92, 1239–1243 (2018). https://doi.org/10.1007/s12648-018-1221-5

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  • DOI: https://doi.org/10.1007/s12648-018-1221-5

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