[Pw_forum] How to create vacuum

[Omamuyovwi Akemu]

Dear QE user,
Must the vacuum created along the z-axis always be sandwich around the slab (eg 8Angstrom vacuum + slab + 8Angstrom vacuum if we want to use a 16A vacuum for a calculation) for all calculations involving surface properties?

Thank you.
Jolayemi Omamuyovwi RitaUniversity of BeninNigeria

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