mp-27461/CN/anharm

Harmonic properties

../../_images/fig_bandos_pr12108.png

(a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo12108.png

(b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all5052.png

(a) Grüneisen parameters

../../_images/fig_gruneisen5052.png

(b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO) — q-mesh: 11x10x11, supercell: 2x2x2

../../_images/fig_kappa9510.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size5111.png

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

Phonon lifetime and scattering rates

../../_images/fig_lifetime5002.png

(a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates5001.png

(b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency5002.png

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

../../_images/fig_cumu_mfp5001.png

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

Force constants

../../_images/fig_fc211809.png

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

Summary

../../_images/fig_kappa9511.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times20511.png

(b) Computation time