mp-5185/K2BeF4/anharm

Space group: Pnma (62)
Link: Materials Project
Download: mp-5185.tar.gz

Harmonic properties

../../_images/fig_bandos_pr9913.png — (a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo9913.png — (b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all3976.png — (a) Grüneisen parameters

../../_images/fig_gruneisen3976.png — (b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO) — q-mesh: 9x12x7, supercell: 2x2x1

../../_images/fig_kappa7498.png — (a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size4028.png — (b) Peierls lattice thermal conductivity w.r.t grain size

Phonon lifetime and scattering rates

../../_images/fig_lifetime3938.png — (a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates3937.png — (b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency3938.png — (a) Spectral and cumulative thermal conductivity w.r.t frequency

../../_images/fig_cumu_mfp3937.png — (b) Spectral and cumulative thermal conductivity w.r.t MFP

Force constants

../../_images/fig_fc29667.png — (a) Force constants w.r.t atomic distance

Summary

../../_images/fig_kappa7499.png — (a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times17226.png — (b) Computation time