mp-18377-2/ZnS/anharm

Equation of state

../../_images/fig_bm6937.png

(a) Equation of state

Harmonic properties

../../_images/fig_bandos_pr13860.png

(a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo13860.png

(b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all5853.png

(a) Grüneisen parameters

../../_images/fig_gruneisen5853.png

(b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO) — q-mesh: 9x9x9, supercell: 1x1x1

../../_images/fig_kappa11010.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size5926.png

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

Phonon lifetime and scattering rates

../../_images/fig_lifetime5796.png

(a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates5795.png

(b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency5796.png

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

../../_images/fig_cumu_mfp5795.png

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

Force constants

../../_images/fig_fc213488.png

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

Summary

../../_images/fig_kappa11011.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times23236.png

(b) Computation time