mp-643293-2/SrMgNiH4/anharm

Equation of state

../../_images/fig_bm2675.png

(a) Equation of state

Harmonic properties

../../_images/fig_bandos_pr5493.png

(a) Phonon dispersion with participation ratio and DOS

../../_images/fig_bandos7892.png

(b) Phonon dispersion and DOS

../../_images/fig_thermo5493.png

(c) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all2288.png

(a) Grüneisen parameters

../../_images/fig_gruneisen2288.png

(b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO), supercell 2x2x2 — q-mesh: 10x10x10, supercell: 2x2x2

../../_images/fig_kappa4375.png

(a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size2318.png

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

Phonon lifetime and scattering rates

../../_images/fig_lifetime2273.png

(a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates2272.png

(b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency2273.png

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

../../_images/fig_cumu_mfp2273.png

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

Force constants

../../_images/fig_fc25295.png

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

Summary

../../_images/fig_times9927.png

(a) Computation time