mp-9793/Ba3BAsO3/anharm

Harmonic properties

../../_images/fig_bandos_pr1239.png

(a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo1239.png

(b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all768.png

(a) Grüneisen parameters

../../_images/fig_gruneisen768.png

(b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO) — q-mesh: 13x13x5, supercell: 3x3x1

../../_images/fig_kappa1494.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size776.png

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

Phonon lifetime and scattering rates

../../_images/fig_lifetime762.png

(a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates761.png

(b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency762.png

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

../../_images/fig_cumu_mfp762.png

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

Force constants

../../_images/fig_fc21105.png

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

Summary

../../_images/fig_kappa1495.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times1855.png

(b) Computation time