graphene

sisl.geom.graphene(bond=1.42, atoms=None, orthogonal=False, vacuum=20)

Graphene lattice with 2 or 4 atoms per unit-cell, latter orthogonal cell

Parameters:

bond (float) – bond length between atoms (not lattice constant)
atoms (Atom, optional) – the atom (or atoms) that the honeycomb lattice consists of. Default to Carbon atom.
orthogonal (bool) – if True returns an orthogonal lattice
vacuum (float) – length of vacuum region (along 3rd lattice vector)

Return type:

Geometry