mp-1021503/SiO2/anharm

Space group: Pn-3m (224)
Link: Materials Project
Download: mp-1021503.tar.gz

Harmonic properties

../../_images/fig_bandos_pr136.png — (a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo136.png — (b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all75.png — (a) Grüneisen parameters

../../_images/fig_gruneisen75.png — (b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon — q-mesh: 18x18x18, supercell: 2x2x2

../../_images/fig_kappa145.png — (a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size77.png — (b) Peierls lattice thermal conductivity w.r.t grain size

Phonon lifetime and scattering rates

../../_images/fig_lifetime75.png — (a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates75.png — (b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency75.png — (a) Spectral and cumulative thermal conductivity w.r.t frequency

../../_images/fig_cumu_mfp75.png — (b) Spectral and cumulative thermal conductivity w.r.t MFP

Force constants

../../_images/fig_fc31.png — (a) Force constants w.r.t atomic distance

Summary

../../_images/fig_kappa146.png — (a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times239.png — (b) Computation time