mp-804/GaN/anharm

Space group: P6_3mc (186)
Link: Materials Project
Download: mp-804.tar.gz

Harmonic properties

../../_images/fig_bandos_pr456.png — (a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo456.png — (b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all311.png — (a) Grüneisen parameters

../../_images/fig_gruneisen311.png — (b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO) — q-mesh: 23x23x14, supercell: 4x4x2

../../_images/fig_kappa605.png — (a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size313.png — (b) Peierls lattice thermal conductivity w.r.t grain size

Phonon lifetime and scattering rates

../../_images/fig_lifetime309.png — (a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates308.png — (b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency309.png — (a) Spectral and cumulative thermal conductivity w.r.t frequency

../../_images/fig_cumu_mfp309.png — (b) Spectral and cumulative thermal conductivity w.r.t MFP

Force constants

../../_images/fig_fc2382.png — (a) Force constants w.r.t atomic distance

Summary

../../_images/fig_kappa606.png — (a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times696.png — (b) Computation time