mp-18335/Ba2Ge2Se5/anharm

Space group: Pnma (62)
Link: Materials Project
Download: mp-18335.tar.gz

Harmonic properties

../../_images/fig_bandos_pr13844.png — (a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo13844.png — (b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all5846.png — (a) Grüneisen parameters

../../_images/fig_gruneisen5846.png — (b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO) — q-mesh: 5x7x7, supercell: 1x2x2

../../_images/fig_kappa10996.png — (a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size5919.png — (b) Peierls lattice thermal conductivity w.r.t grain size

Phonon lifetime and scattering rates

../../_images/fig_lifetime5789.png — (a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates5788.png — (b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency5789.png — (a) Spectral and cumulative thermal conductivity w.r.t frequency

../../_images/fig_cumu_mfp5788.png — (b) Spectral and cumulative thermal conductivity w.r.t MFP

Force constants

../../_images/fig_fc213472.png — (a) Force constants w.r.t atomic distance

Summary

../../_images/fig_kappa10997.png — (a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times23215.png — (b) Computation time