mp-13972-2/Sm2SeO2/anharm

Equation of state

../../_images/fig_bm7531.png

(a) Equation of state

Harmonic properties

../../_images/fig_bandos_pr15013.png

(a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo15012.png

(b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all6448.png

(a) Grüneisen parameters

../../_images/fig_gruneisen6448.png

(b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO) — q-mesh: 19x19x10, supercell: 3x3x2

../../_images/fig_kappa12126.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size6525.png

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

Phonon lifetime and scattering rates

../../_images/fig_lifetime6382.png

(a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates6381.png

(b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency6382.png

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

../../_images/fig_cumu_mfp6381.png

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

Force constants

../../_images/fig_fc214630.png

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

Summary

../../_images/fig_kappa12127.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times24852.png

(b) Computation time