mp-560036-2/Li2Ca3Be3Si3O12F2/anharm

Harmonic properties

../../_images/fig_bandos_pr7741.png

(a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo7741.png

(b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all3232.png

(a) Grüneisen parameters

../../_images/fig_gruneisen3232.png

(b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO) — q-mesh: 7x7x7, supercell: 1x1x1

../../_images/fig_kappa6121.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size3274.png

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

Phonon lifetime and scattering rates

../../_images/fig_lifetime3204.png

(a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates3203.png

(b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency3204.png

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

../../_images/fig_cumu_mfp3203.png

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

Force constants

../../_images/fig_fc27504.png

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

Summary

../../_images/fig_kappa6122.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times13654.png

(b) Computation time