mp-23740/Mg2PHO5/anharm

Harmonic properties

../../_images/fig_bandos_pr12481.png

(a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo12481.png

(b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all5182.png

(a) Grüneisen parameters

../../_images/fig_gruneisen5182.png

(b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO) — q-mesh: 8x11x9, supercell: 1x2x2

../../_images/fig_kappa9750.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size5244.png

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

Phonon lifetime and scattering rates

../../_images/fig_lifetime5131.png

(a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates5130.png

(b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency5131.png

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

../../_images/fig_cumu_mfp5130.png

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

Force constants

../../_images/fig_fc212180.png

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

Summary

../../_images/fig_kappa9751.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times21208.png

(b) Computation time