mp-15432/K2Ga2As3/anharm

Space group: P2_1/c (14)
Link: Materials Project
Download: mp-15432.tar.gz

Harmonic properties

../../_images/fig_bandos_pr14636.png — (a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo14636.png — (b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all6261.png — (a) Grüneisen parameters

../../_images/fig_gruneisen6261.png — (b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO) — q-mesh: 5x10x4, supercell: 1x2x1

../../_images/fig_kappa11778.png — (a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size6338.png — (b) Peierls lattice thermal conductivity w.r.t grain size

Phonon lifetime and scattering rates

../../_images/fig_lifetime6199.png — (a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates6198.png — (b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency6199.png — (a) Spectral and cumulative thermal conductivity w.r.t frequency

../../_images/fig_cumu_mfp6198.png — (b) Spectral and cumulative thermal conductivity w.r.t MFP

Force constants

../../_images/fig_fc214255.png — (a) Force constants w.r.t atomic distance

Summary

../../_images/fig_kappa11779.png — (a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times24346.png — (b) Computation time