mp-23497/Li2ZnI4/anharm

Harmonic properties

../../_images/fig_bandos_pr12711.png

(a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo12711.png

(b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all5271.png

(a) Grüneisen parameters

../../_images/fig_gruneisen5271.png

(b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO) — q-mesh: 4x8x10, supercell: 1x2x2

../../_images/fig_kappa9906.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size5333.png

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

Phonon lifetime and scattering rates

../../_images/fig_lifetime5220.png

(a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates5219.png

(b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency5220.png

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

../../_images/fig_cumu_mfp5219.png

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

Force constants

../../_images/fig_fc212407.png

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

Summary

../../_images/fig_kappa9907.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times21578.png

(b) Computation time