mp-8195/Ba2GeAs2/anharm

Space group: P2_1/c (14)
Link: Materials Project
Download: mp-8195.tar.gz

Harmonic properties

../../_images/fig_bandos_pr2073.png — (a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo2073.png — (b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all1184.png — (a) Grüneisen parameters

../../_images/fig_gruneisen1184.png — (b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO) — q-mesh: 8x7x9, supercell: 2x1x2

../../_images/fig_kappa2282.png — (a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size1198.png — (b) Peierls lattice thermal conductivity w.r.t grain size

Phonon lifetime and scattering rates

../../_images/fig_lifetime1174.png — (a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates1173.png — (b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency1174.png — (a) Spectral and cumulative thermal conductivity w.r.t frequency

../../_images/fig_cumu_mfp1174.png — (b) Spectral and cumulative thermal conductivity w.r.t MFP

Force constants

../../_images/fig_fc21894.png — (a) Force constants w.r.t atomic distance

Summary

../../_images/fig_kappa2283.png — (a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times3189.png — (b) Computation time