mp-18112-2/Sr2Ge2Se5/anharm

Space group: P2_1/c (14)
Link: Materials Project
Download: mp-18112-2.tar.gz

Equation of state

../../_images/fig_bm6886.png — (a) Equation of state

Harmonic properties

../../_images/fig_bandos_pr13782.png — (a) Phonon dispersion with participation ratio and DOS

../../_images/fig_thermo13782.png — (b) Thermodynamic properties

Grüneisen parameters

../../_images/fig_gru_all5809.png — (a) Grüneisen parameters

../../_images/fig_gruneisen5809.png — (b) Phonon dispersion with Grüneisen parameters

Thermal conductivity

3-phonon (LASSO) — q-mesh: 9x6x6, supercell: 2x1x2

../../_images/fig_kappa10924.png — (a) Temperature-dependent lattice thermal conductivity

../../_images/fig_kappa_vs_grain_size5880.png — (b) Peierls lattice thermal conductivity w.r.t grain size

Phonon lifetime and scattering rates

../../_images/fig_lifetime5753.png — (a) Phonon lifetime due to phonon-phonon scattering

../../_images/fig_scat_rates5752.png — (b) Phonon scattering rates

Cumulative and spectral thermal conductivity

../../_images/fig_cumu_frequency5753.png — (a) Spectral and cumulative thermal conductivity w.r.t frequency

../../_images/fig_cumu_mfp5752.png — (b) Spectral and cumulative thermal conductivity w.r.t MFP

Force constants

../../_images/fig_fc213410.png — (a) Force constants w.r.t atomic distance

Summary

../../_images/fig_kappa10925.png — (a) Temperature-dependent lattice thermal conductivity

../../_images/fig_times23108.png — (b) Computation time