Electron–acoustic-phonon energy-loss rate in multicomponent electron systems with symmetric and asymmetric coupling constants
Electron–acoustic-phonon energy-loss rate in multicomponent electron systems with symmetric and asymmetric coupling constants
We consider electron-phonon $(e\text{\ensuremath{-}}\mathit{ph})$ energy-loss rate in three-dimensional and two-dimensional multicomponent electron systems in semiconductors. We allow general asymmetry in the $e\text{\ensuremath{-}}\mathit{ph}$ coupling constants (matrix elements), i.e., we allow the coupling to depend on the electron subsystem index. We derive a multicomponent $e\text{\ensuremath{-}}\mathit{ph}$ power-loss formula, which takes into account the …