mp-1228067/Ba2ZrSnO6/anharm

Harmonic properties

../../_images/fig_bandos_pr15138.png

(a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo15137.png

(b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all6497.png

(a) Grüneisen parameters

../../_images/fig_gruneisen6497.png

(b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO) — q-mesh: 13x13x13, supercell: 1x1x1

../../_images/fig_kappa12224.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size6574.png

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

Phonon lifetime and scattering rates

../../_images/fig_lifetime6431.png

(a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates6430.png

(b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency6431.png

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

../../_images/fig_cumu_mfp6430.png

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

Force constants

../../_images/fig_fc214753.png

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

Summary

../../_images/fig_kappa12225.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times25052.png

(b) Computation time