Abstract
AbstractIn this work, we investigate the plasmon–LO phonon interaction effects on the intrasubband structure factor, electron–electron effective potential, and plasmon energy associated with the lowest subband in a GaAs‐AlGaAs rectangular quantum‐well wire (QWW) as a function of the electronic density. Our calculations are performed using the self‐consistent field approximation, which includes the local‐field correction (LFC) within the Singwi, Tosi, Land, and Sjolander (STLS) theory, at zero temperature and assuming a three‐subband model, where only the first subband is occupied by electrons. We report for the first time dips in the structure factor spectra as a function of the quasi‐one‐dimensional (Q1D) plasmon–LO phonon wavevector that are directly related with the resonant split of the collective excitation energy into two branches due to the polaronic effects.
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