mp-31321/LaC6N9/anharm

Harmonic properties

../../_images/fig_bandos_pr10748.png

(a) Phonon dispersion with participation ratio and DOS

../../_images/fig_bandos14673.png

(b) Phonon dispersion and DOS

../../_images/fig_thermo10748.png

(c) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all4376.png

(a) Grüneisen parameters

../../_images/fig_gruneisen4376.png

(b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO) — q-mesh: 10x10x7, supercell: 2x1x1

../../_images/fig_kappa8261.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size4428.png

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

Phonon lifetime and scattering rates

../../_images/fig_lifetime4333.png

(a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates4332.png

(b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency4333.png

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

../../_images/fig_cumu_mfp4332.png

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

Force constants

../../_images/fig_fc210480.png

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

Summary

../../_images/fig_kappa8262.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times18436.png

(b) Computation time