mp-505782/Cs2SO4/anharm

Harmonic properties

../../_images/fig_bandos_pr9897.png

(a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo9897.png

(b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all3964.png

(a) Grüneisen parameters

../../_images/fig_gruneisen3964.png

(b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO) — q-mesh: 8x11x6, supercell: 2x2x1

../../_images/fig_kappa7475.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size4016.png

(b) Peierls lattice thermal conductivity w.r.t grain size

Phonon lifetime and scattering rates

../../_images/fig_lifetime3927.png

(a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates3926.png

(b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency3927.png

(a) Spectral and cumulative thermal conductivity w.r.t frequency

../../_images/fig_cumu_mfp3926.png

(b) Spectral and cumulative thermal conductivity w.r.t MFP

Force constants

../../_images/fig_fc29651.png

(a) Force constants w.r.t atomic distance

Summary

../../_images/fig_kappa7476.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times17199.png

(b) Computation time