mp-13374-2/LaTmO3/anharm

Equation of state

../../_images/fig_bm7453.png

(a) Equation of state

Harmonic properties

../../_images/fig_bandos_pr14880.png

(a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo14880.png

(b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all6386.png

(a) Grüneisen parameters

../../_images/fig_gruneisen6386.png

(b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO) — q-mesh: 12x8x12, supercell: 2x1x2

../../_images/fig_kappa12008.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size6462.png

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

Phonon lifetime and scattering rates

../../_images/fig_lifetime6321.png

(a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates6320.png

(b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency6321.png

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

../../_images/fig_cumu_mfp6320.png

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

Force constants

../../_images/fig_fc214497.png

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

Summary

../../_images/fig_kappa12009.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times24685.png

(b) Computation time