mp-6174-2/Mg2Al4Si5O18/anharm

Equation of state

../../_images/fig_bm3325.png

(a) Equation of state

Harmonic properties

../../_images/fig_bandos_pr6294.png

(a) Phonon dispersion with participation ratio and DOS

../../_images/fig_bandos9156.png

(b) Phonon dispersion and DOS

../../_images/fig_thermo6294.png

(c) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all2567.png

(a) Grüneisen parameters

../../_images/fig_gruneisen2567.png

(b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO), supercell 1x1x2 — q-mesh: 7x7x8, supercell: 1x1x2

../../_images/fig_kappa4884.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size2602.png

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

Phonon lifetime and scattering rates

../../_images/fig_lifetime2548.png

(a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates2547.png

(b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency2548.png

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

../../_images/fig_cumu_mfp2547.png

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

Force constants

../../_images/fig_fc26084.png

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

Summary

../../_images/fig_times11410.png

(a) Computation time