Fig. 4: Coupled dynamics of electrons and phonons in silicon. | npj Computational Materials

Fig. 4: Coupled dynamics of electrons and phonons in silicon.

From: Advancing simulations of coupled electron and phonon nonequilibrium dynamics using adaptive and multirate time integration

Fig. 4

a Electron populations, fnk(t) in the lowest conduction band at 0 ps and 1 ps, and the change in the electron populations from 1 ps to 20 ps, Δfnk, shown in a 2D plane of the first BZ at kz = 0. b Change in phonon populations, ΔNνq(t), in the first BZ at times 1 ps and 20 ps, plotted separately for transverse acoustic (TA1 + TA2), longitudinal acoustic (LA), transverse optical (TO1 + TO2), and longitudinal optical (LO) modes. c Fractional change in diffuse scattering intensity, ΔI(q, t), for the (100) plane at 1 ps and 20 ps simulation times.

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