HI. I am Jinu who is a student of Korea.
My friend Hung send me one file.
From the lattice doc page, “IMPORTANT NOTE: For non-orthogonal unit cells and/or when a rotation is applied via the orient keyword, then the lattice spacings may be less intuitive. In particular, in these cases, there is no guarantee that the lattice spacing is an integer multiple of the periodicity of the lattice in that direction. Thus, if you create an orthogonal periodic simulation box whose size in a dimension is a multiple of the lattice spacing, and then fill it with atoms via the create_atoms command, you will NOT necessarily create a periodic system. I.e. atoms may overlap incorrectly at the faces of the simulation box.”.