mp-17827-2/Nd3SiAgSe7/anharm

Equation of state

../../_images/fig_bm7026.png

(a) Equation of state

Harmonic properties

../../_images/fig_bandos_pr14028.png

(a) Phonon dispersion with participation ratio and DOS

../../_images/fig_bandos18415.png

(b) Phonon dispersion and DOS

../../_images/fig_thermo14028.png

(c) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all5946.png

(a) Grüneisen parameters

../../_images/fig_gruneisen5946.png

(b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO), supercell 2x2x2 — q-mesh: 7x7x12, supercell: 2x2x2

../../_images/fig_kappa11193.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size6024.png

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

Phonon lifetime and scattering rates

../../_images/fig_lifetime5889.png

(a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates5888.png

(b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency5889.png

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

../../_images/fig_cumu_mfp5888.png

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

Force constants

../../_images/fig_fc213656.png

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

Summary

../../_images/fig_times23479.png

(a) Computation time