mp-1020594-2/Zn2SiO4/anharm

Equation of state

../../_images/fig_bm13.png

(a) Equation of state

Harmonic properties

../../_images/fig_bandos_pr99.png

(a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo99.png

(b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all61.png

(a) Grüneisen parameters

../../_images/fig_gruneisen61.png

(b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO) — q-mesh: 6x10x14, supercell: 1x2x2

../../_images/fig_kappa120.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size63.png

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

Phonon lifetime and scattering rates

../../_images/fig_lifetime61.png

(a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates61.png

(b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency61.png

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

../../_images/fig_cumu_mfp61.png

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

Force constants

../../_images/fig_fc298.png

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

Summary

../../_images/fig_kappa121.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times169.png

(b) Computation time