mp-20767/FeSb2S4/anharm

Harmonic properties

../../_images/fig_bandos_pr13497.png

(a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo13497.png

(b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all5706.png

(a) Grüneisen parameters

../../_images/fig_gruneisen5706.png

(b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO) — q-mesh: 6x20x5, supercell: 1x4x1

../../_images/fig_kappa10725.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size5774.png

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

Phonon lifetime and scattering rates

../../_images/fig_lifetime5651.png

(a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates5650.png

(b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency5651.png

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

../../_images/fig_cumu_mfp5650.png

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

Force constants

../../_images/fig_fc213132.png

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

Summary

../../_images/fig_kappa10726.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times22711.png

(b) Computation time