mp-1958/SrTe/anharm

Harmonic properties

../../_images/fig_bandos_pr245.png

(a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo245.png

(b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all161.png

(a) Grüneisen parameters

../../_images/fig_gruneisen161.png

(b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon — q-mesh: 17x17x17, supercell: 2x2x2

../../_images/fig_kappa312.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size162.png

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

Phonon lifetime and scattering rates

../../_images/fig_lifetime160.png

(a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates159.png

(b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency160.png

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

../../_images/fig_cumu_mfp160.png

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

Force constants

../../_images/fig_fc325.png

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

Summary

../../_images/fig_kappa313.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times394.png

(b) Computation time