mp-555871/Na2CuSbS3/anharm

Harmonic properties

../../_images/fig_bandos_pr8698.png

(a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo8698.png

(b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all3514.png

(a) Grüneisen parameters

../../_images/fig_gruneisen3514.png

(b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO) — q-mesh: 12x4x10, supercell: 2x1x2

../../_images/fig_kappa6646.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size3558.png

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

Phonon lifetime and scattering rates

../../_images/fig_lifetime3481.png

(a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates3480.png

(b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency3481.png

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

../../_images/fig_cumu_mfp3480.png

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

Force constants

../../_images/fig_fc28459.png

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

Summary

../../_images/fig_kappa6647.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times15238.png

(b) Computation time