mp-1188323/Ti2O3/anharm

Harmonic properties

../../_images/fig_bandos_pr16186.png

(a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo16185.png

(b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all7030.png

(a) Grüneisen parameters

../../_images/fig_gruneisen7030.png

(b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO) — q-mesh: 9x25x8, supercell: 2x3x1

../../_images/fig_kappa13240.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size7112.png

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

Phonon lifetime and scattering rates

../../_images/fig_lifetime6964.png

(a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates6963.png

(b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency6964.png

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

../../_images/fig_cumu_mfp6963.png

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

Force constants

../../_images/fig_fc215779.png

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

Summary

../../_images/fig_kappa13241.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times26659.png

(b) Computation time