mp-7104/CsCaF3/anharm

Harmonic properties

../../_images/fig_bandos_pr4801.png

(a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo4801.png

(b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all2070.png

(a) Grüneisen parameters

../../_images/fig_gruneisen2070.png

(b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO) — q-mesh: 15x15x15, supercell: 3x3x3

../../_images/fig_kappa3969.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size2101.png

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

Phonon lifetime and scattering rates

../../_images/fig_lifetime2057.png

(a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates2056.png

(b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency2057.png

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

../../_images/fig_cumu_mfp2057.png

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

Force constants

../../_images/fig_fc24612.png

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

Summary

../../_images/fig_kappa3970.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times8505.png

(b) Computation time