mp-36903-2/KNO3/anharm

Equation of state

../../_images/fig_bm5255.png

(a) Equation of state

Harmonic properties

../../_images/fig_bandos_pr10571.png

(a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo10571.png

(b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all4294.png

(a) Grüneisen parameters

../../_images/fig_gruneisen4294.png

(b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO) — q-mesh: 15x13x10, supercell: 3x2x2

../../_images/fig_kappa8096.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size4345.png

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

Phonon lifetime and scattering rates

../../_images/fig_lifetime4251.png

(a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates4250.png

(b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency4251.png

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

../../_images/fig_cumu_mfp4250.png

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

Force constants

../../_images/fig_fc210307.png

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

Summary

../../_images/fig_kappa8097.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times18174.png

(b) Computation time