mp-540773/Ca2GeS4/anharm

Space group: Pnma (62)
Link: Materials Project
Download: mp-540773.tar.gz

Harmonic properties

../../_images/fig_bandos_pr9716.png — (a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo9716.png — (b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all3881.png — (a) Grüneisen parameters

../../_images/fig_gruneisen3881.png — (b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO) — q-mesh: 5x8x11, supercell: 1x2x2

../../_images/fig_kappa7315.png — (a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size3931.png — (b) Peierls lattice thermal conductivity w.r.t grain size

Phonon lifetime and scattering rates

../../_images/fig_lifetime3845.png — (a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates3844.png — (b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency3845.png — (a) Spectral and cumulative thermal conductivity w.r.t frequency

../../_images/fig_cumu_mfp3844.png — (b) Spectral and cumulative thermal conductivity w.r.t MFP

Force constants

../../_images/fig_fc29476.png — (a) Force constants w.r.t atomic distance

Summary

../../_images/fig_kappa7316.png — (a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times16903.png — (b) Computation time