mp-27594-2/As4Pb9S15/anharm

Equation of state

../../_images/fig_bm5966.png

(a) Equation of state

Harmonic properties

../../_images/fig_bandos_pr12156.png

(a) Phonon dispersion with participation ratio and DOS

../../_images/fig_bandos16265.png

(b) Phonon dispersion and DOS

../../_images/fig_thermo12156.png

(c) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all5072.png

(a) Grüneisen parameters

../../_images/fig_gruneisen5072.png

(b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO), supercell 1x1x2 — q-mesh: 8x8x8, supercell: 1x1x2

../../_images/fig_kappa9547.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size5132.png

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

Phonon lifetime and scattering rates

../../_images/fig_lifetime5022.png

(a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates5021.png

(b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency5022.png

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

../../_images/fig_cumu_mfp5021.png

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

Force constants

../../_images/fig_fc211857.png

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

Summary

../../_images/fig_times20598.png

(a) Computation time