mp-546266/DyBi2IO4/anharm

Harmonic properties

../../_images/fig_bandos_pr9406.png

(a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo9406.png

(b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all3742.png

(a) Grüneisen parameters

../../_images/fig_gruneisen3742.png

(b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO) — q-mesh: 18x18x7, supercell: 3x3x2

../../_images/fig_kappa7063.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size3791.png

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

Phonon lifetime and scattering rates

../../_images/fig_lifetime3707.png

(a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates3706.png

(b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency3707.png

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

../../_images/fig_cumu_mfp3706.png

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

Force constants

../../_images/fig_fc29168.png

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

Summary

../../_images/fig_kappa7064.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times16379.png

(b) Computation time