mp-1219475-2/Sb2Te2Se/anharm

Equation of state

../../_images/fig_bm7555.png

(a) Equation of state

Harmonic properties

../../_images/fig_bandos_pr15276.png

(a) Phonon dispersion with participation ratio and DOS

../../_images/fig_bandos19653.png

(b) Phonon dispersion and DOS

../../_images/fig_thermo15275.png

(c) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all6586.png

(a) Grüneisen parameters

../../_images/fig_gruneisen6586.png

(b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO), supercell 4x4x1 — q-mesh: 13x13x13, supercell: 4x4x1

../../_images/fig_kappa12396.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size6663.png

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

Phonon lifetime and scattering rates

../../_images/fig_lifetime6520.png

(a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates6519.png

(b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency6520.png

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

../../_images/fig_cumu_mfp6519.png

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

Force constants

../../_images/fig_fc214886.png

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

Summary

../../_images/fig_times25273.png

(a) Computation time