mp-1195028/Na2Lu2B2TeO10/anharm

Harmonic properties

../../_images/fig_bandos_pr15521.png

(a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo15520.png

(b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all6722.png

(a) Grüneisen parameters

../../_images/fig_gruneisen6722.png

(b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO) — q-mesh: 11x7x10, supercell: 2x1x2

../../_images/fig_kappa12657.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size6801.png

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

Phonon lifetime and scattering rates

../../_images/fig_lifetime6656.png

(a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates6655.png

(b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency6656.png

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

../../_images/fig_cumu_mfp6655.png

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

Force constants

../../_images/fig_fc215116.png

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

Summary

../../_images/fig_kappa12658.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times25649.png

(b) Computation time