WebDec 7, 2024 · Any description of an electron attracting "nearby" ions is therefore a simplified picture, because "nearby" is ill-defined. But it is true that electrons interact with the phonons, and that this causes a small attraction between the electrons, which are otherwise repulsed by … WebBoth of these are significantly affected by electron–phonon coupling. In this work, using a combination of density functional theory and semiclassical Boltzmann transport theory, we have studied the effect of electron–phonon coupling in monolayers of ZrS 2, BiI 3 and PbI 2. Our results show that in these ionic materials charge carriers are ...
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WebApr 13, 2024 · Temperature-dependent Raman analysis reveals that the longitudinal optical phonon modes shift to the lower wavenumber side as temperature decreases, which describes the variation of lattice parameters with temperature. The barrier height and ideality factor were calculated by implementing the thermionic emission. WebApr 14, 2024 · In this paper, we investigate the electronic and optical properties of an electron in both symmetric and asymmetric double quantum wells that consist of a harmonic potential with an internal Gaussian barrier under a nonresonant intense laser field. The electronic structure was obtained by using the two-dimensional diagonalization … orc reckless op
(PDF) Barrier penetration effects on thermopower in …
WebThe band gap acts as the potential barrier that the particle tunnels across. An electron travels from the valance band to the conduction band without the absorption or emission of photon in direct tunneling. A tunneling particle acquires a change in momentum by absorbing or emitting a phonon in the indirect tunneling process. WebIncorporating the barrier penetration effects, the dependences of diffusion TP and phonon drag TP on barrier height are studied. An expression for phonon drag TP is … WebJan 15, 2014 · The 2DEG is considered to be scattered by acoustic phonons via screened deformation potential and piezoelectric couplings. Incorporating the barrier penetration … iproperty expo