mp-1101890/PRuSe/anharm

Harmonic properties

../../_images/fig_bandos_pr16514.png

(a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo16513.png

(b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all7154.png

(a) Grüneisen parameters

../../_images/fig_gruneisen7154.png

(b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO) — q-mesh: 12x12x12, supercell: 3x2x2

../../_images/fig_kappa13490.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size7240.png

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

Phonon lifetime and scattering rates

../../_images/fig_lifetime7088.png

(a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates7087.png

(b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency7088.png

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

../../_images/fig_cumu_mfp7087.png

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

Force constants

../../_images/fig_fc216089.png

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

Summary

../../_images/fig_kappa13491.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times27038.png

(b) Computation time