mp-540789/PbI2/anharm

Harmonic properties

../../_images/fig_bandos_pr9720.png

(a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo9720.png

(b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all3882.png

(a) Grüneisen parameters

../../_images/fig_gruneisen3882.png

(b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon — q-mesh: 11x11x11, supercell: 2x2x1

../../_images/fig_kappa7317.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size3932.png

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

Phonon lifetime and scattering rates

../../_images/fig_lifetime3846.png

(a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates3845.png

(b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency3846.png

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

../../_images/fig_cumu_mfp3845.png

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

Force constants

../../_images/fig_fc3241.png

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

Summary

../../_images/fig_kappa7318.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times16910.png

(b) Computation time