mp-14324/K2Na4Be2O5/anharm

Space group: P4_2/mnm (136)
Link: Materials Project
Download: mp-14324.tar.gz

Equation of state

../../_images/fig_bm7382.png — (a) Equation of state

Harmonic properties

../../_images/fig_bandos_pr14758.png — (a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo14758.png — (b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all6326.png — (a) Grüneisen parameters

../../_images/fig_gruneisen6326.png — (b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO) — q-mesh: 12x12x7, supercell: 2x2x1

../../_images/fig_kappa11899.png — (a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size6402.png — (b) Peierls lattice thermal conductivity w.r.t grain size

Phonon lifetime and scattering rates

../../_images/fig_lifetime6263.png — (a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates6262.png — (b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency6263.png — (a) Spectral and cumulative thermal conductivity w.r.t frequency

../../_images/fig_cumu_mfp6262.png — (b) Spectral and cumulative thermal conductivity w.r.t MFP

Force constants

../../_images/fig_fc214376.png — (a) Force constants w.r.t atomic distance

Summary

../../_images/fig_kappa11900.png — (a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times24515.png — (b) Computation time