mp-863745/RbSrCO3F/anharm

Harmonic properties

../../_images/fig_bandos_pr1530.png

(a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo1530.png

(b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all921.png

(a) Grüneisen parameters

../../_images/fig_gruneisen921.png

(b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO) — q-mesh: 15x14x14, supercell: 2x2x2

../../_images/fig_kappa1789.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size931.png

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

Phonon lifetime and scattering rates

../../_images/fig_lifetime914.png

(a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates913.png

(b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency914.png

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

../../_images/fig_cumu_mfp914.png

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

Force constants

../../_images/fig_fc21377.png

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

Summary

../../_images/fig_kappa1790.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times2287.png

(b) Computation time