mp-11006/BaPS3/anharm

Equation of state

../../_images/fig_bm7750.png

(a) Equation of state

Harmonic properties

../../_images/fig_bandos_pr16736.png

(a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo16735.png

(b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all7297.png

(a) Grüneisen parameters

../../_images/fig_gruneisen7297.png

(b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO) — q-mesh: 11x10x6, supercell: 2x2x1

../../_images/fig_kappa13760.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size7383.png

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

Phonon lifetime and scattering rates

../../_images/fig_lifetime7231.png

(a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates7230.png

(b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency7231.png

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

../../_images/fig_cumu_mfp7230.png

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

Force constants

../../_images/fig_fc216294.png

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

Summary

../../_images/fig_kappa13761.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times27349.png

(b) Computation time