mp-984605/Ca3SnH2/anharm

Harmonic properties

../../_images/fig_bandos_pr1092.png

(a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo1092.png

(b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all672.png

(a) Grüneisen parameters

../../_images/fig_gruneisen672.png

(b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO) — q-mesh: 10x10x13, supercell: 2x1x3

../../_images/fig_kappa1310.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size680.png

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

Phonon lifetime and scattering rates

../../_images/fig_lifetime670.png

(a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates669.png

(b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency670.png

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

../../_images/fig_cumu_mfp670.png

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

Force constants

../../_images/fig_fc2959.png

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

Summary

../../_images/fig_kappa1311.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times1640.png

(b) Computation time