mp-583052-3/LuCuPbSe3/anharm

Harmonic properties

../../_images/fig_bandos_pr6512.png

(a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo6512.png

(b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all2668.png

(a) Grüneisen parameters

../../_images/fig_gruneisen2668.png

(b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO) — q-mesh: 7x18x5, supercell: 2x3x1

../../_images/fig_kappa5072.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size2705.png

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

Phonon lifetime and scattering rates

../../_images/fig_lifetime2644.png

(a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates2643.png

(b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency2644.png

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

../../_images/fig_cumu_mfp2643.png

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

Force constants

../../_images/fig_fc26302.png

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

Summary

../../_images/fig_kappa5073.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times11710.png

(b) Computation time