mp-7642/K2AgAs/anharm

Space group: Cmcm (63)
Link: Materials Project
Download: mp-7642.tar.gz

Harmonic properties

../../_images/fig_bandos_pr4613.png — (a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo4613.png — (b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all1993.png — (a) Grüneisen parameters

../../_images/fig_gruneisen1993.png — (b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO) — q-mesh: 11x11x12, supercell: 2x2x2

../../_images/fig_kappa3817.png — (a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size2020.png — (b) Peierls lattice thermal conductivity w.r.t grain size

Phonon lifetime and scattering rates

../../_images/fig_lifetime1982.png — (a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates1981.png — (b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency1982.png — (a) Spectral and cumulative thermal conductivity w.r.t frequency

../../_images/fig_cumu_mfp1982.png — (b) Spectral and cumulative thermal conductivity w.r.t MFP

Force constants

../../_images/fig_fc24425.png — (a) Force constants w.r.t atomic distance

Summary

../../_images/fig_kappa3818.png — (a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times8201.png — (b) Computation time