mp-768285/Be2GeO4/anharm

Space group: R-3 (148)
Link: Materials Project
Download: mp-768285.tar.gz

Harmonic properties

../../_images/fig_bandos_pr2824.png — (a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo2824.png — (b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all1393.png — (a) Grüneisen parameters

../../_images/fig_gruneisen1393.png — (b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO) — q-mesh: 9x9x9, supercell: 1x1x1

../../_images/fig_kappa2687.png — (a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size1409.png — (b) Peierls lattice thermal conductivity w.r.t grain size

Phonon lifetime and scattering rates

../../_images/fig_lifetime1383.png — (a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates1382.png — (b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency1383.png — (a) Spectral and cumulative thermal conductivity w.r.t frequency

../../_images/fig_cumu_mfp1383.png — (b) Spectral and cumulative thermal conductivity w.r.t MFP

Force constants

../../_images/fig_fc22645.png — (a) Force constants w.r.t atomic distance

Summary

../../_images/fig_kappa2688.png — (a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times4760.png — (b) Computation time