mp-643941/CaAl2SiH4O8/anharm

Equation of state

../../_images/fig_bm2700.png

(a) Equation of state

Harmonic properties

../../_images/fig_bandos_pr5541.png

(a) Phonon dispersion with participation ratio and DOS

../../_images/fig_bandos7943.png

(b) Phonon dispersion and DOS

../../_images/fig_thermo5541.png

(c) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all2314.png

(a) Grüneisen parameters

../../_images/fig_gruneisen2314.png

(b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO), supercell 2x2x1 — q-mesh: 10x10x10, supercell: 2x2x1

../../_images/fig_kappa4424.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size2344.png

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

Phonon lifetime and scattering rates

../../_images/fig_lifetime2299.png

(a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates2298.png

(b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency2299.png

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

../../_images/fig_cumu_mfp2299.png

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

Force constants

../../_images/fig_fc25343.png

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

Summary

../../_images/fig_times10001.png

(a) Computation time