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. 2021 Jan 8;12:201. doi: 10.1038/s41467-020-20370-2

Fig. 5. Ionic conductivities of M3HCh antiperovskites (M = Li, Na, and Ch = S, Se, Te).

Fig. 5

Low-barrier migration pathways for a vacancy and b interstitial dumbbell migration in M3HCh. Top-left insets show M+ migration when viewing HM6 octahedron from the top to down. For orthorhombic Na3HS, there are many migration pathways, one of which is shown as a representative example (see Supplementary Fig. 15 for details). c Migration barriers for cation transport via the vacancy and interstitial dumbbell mechanism in M3HCh as a function of the force constant krot with respect to the HM6 rotational motion. d Arrhenius plots of the total conductivity values for undoped M3HCh cold-pressed samples in the temperature range from 25 to 100 °C.