mp-1201627/RbH4CN3/anharm

Harmonic properties

../../_images/fig_bandos_pr15379.png

(a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo15378.png

(b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all6653.png

(a) Grüneisen parameters

../../_images/fig_gruneisen6653.png

(b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO) — q-mesh: 10x10x9, supercell: 2x2x1

../../_images/fig_kappa12528.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size6731.png

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

Phonon lifetime and scattering rates

../../_images/fig_lifetime6587.png

(a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates6586.png

(b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency6587.png

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

../../_images/fig_cumu_mfp6586.png

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

Force constants

../../_images/fig_fc214982.png

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

Summary

../../_images/fig_kappa12529.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times25430.png

(b) Computation time