Comments (2)
In my understanding, all the lengths in S4 are relative length, as here. That is to say you can define any unit you want, but the unit has to be consistent.
If you set the lattice as (0, 0.68), and you enter thickness = 0.2, then it means 0.2um. However, if you set lattice as (0, 1), and the actual lattice size in your mind is 0.68um, then a thickness of 0.2 means 0.2*0.68um, since your absolute lattice size is 0.68um while you set it to 1. In this case, the unit is 0.68um.
Just be consistant and maybe thinking all the numbers in unit of um is easier.
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@charey6 that makes sense, thank you for the reply!
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