mp-11718/RbF/anharm

Harmonic properties

../../_images/fig_bandos_pr16460.png

(a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo16459.png

(b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all7116.png

(a) Grüneisen parameters

../../_images/fig_gruneisen7116.png

(b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO) — q-mesh: 20x20x20, supercell: 2x2x2

../../_images/fig_kappa13411.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size7199.png

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

Phonon lifetime and scattering rates

../../_images/fig_lifetime7050.png

(a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates7049.png

(b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency7050.png

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

../../_images/fig_cumu_mfp7049.png

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

Force constants

../../_images/fig_fc216040.png

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

Summary

../../_images/fig_kappa13412.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times26962.png

(b) Computation time