mp-17490/Rb5SiAs3/anharm

Harmonic properties

../../_images/fig_bandos_pr13934.png

(a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo13934.png

(b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all5895.png

(a) Grüneisen parameters

../../_images/fig_gruneisen5895.png

(b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO) — q-mesh: 5x12x4, supercell: 1x3x1

../../_images/fig_kappa11096.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size5972.png

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

Phonon lifetime and scattering rates

../../_images/fig_lifetime5838.png

(a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates5837.png

(b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency5838.png

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

../../_images/fig_cumu_mfp5837.png

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

Force constants

../../_images/fig_fc213562.png

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

Summary

../../_images/fig_kappa11097.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times23341.png

(b) Computation time