mp-18504/Ca3Ge2As4/anharm

Space group: P2_1/c (14)
Link: Materials Project
Download: mp-18504.tar.gz

Harmonic properties

../../_images/fig_bandos_pr13897.png — (a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo13897.png — (b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all5871.png — (a) Grüneisen parameters

../../_images/fig_gruneisen5871.png — (b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO) — q-mesh: 10x4x10, supercell: 2x1x2

../../_images/fig_kappa11048.png — (a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size5947.png — (b) Peierls lattice thermal conductivity w.r.t grain size

Phonon lifetime and scattering rates

../../_images/fig_lifetime5814.png — (a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates5813.png — (b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency5814.png — (a) Spectral and cumulative thermal conductivity w.r.t frequency

../../_images/fig_cumu_mfp5813.png — (b) Spectral and cumulative thermal conductivity w.r.t MFP

Force constants

../../_images/fig_fc213525.png — (a) Force constants w.r.t atomic distance

Summary

../../_images/fig_kappa11049.png — (a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times23294.png — (b) Computation time