[Pw_forum] mixed supercells

[Lorenzo Pedrazzetti]

Good afternoon,
I am trying to model the interface between two solid with different cella parameter. By looking at their experimental cell value I am supposed to stack a 3x3 slab onto a 2x2 slab made of different material.
My problemi s the "CELL_PARAMETERS" card; i found some difficulties to understand how to specify the different periodicity of the two materials.
Thanks a lot,
Lorenzo.
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