Uploaded July 2012 | Updated September 2026, 2 weeks ago
The unit of the F-RD surface is a chamber with tunnels in 4 directions like in a tetrahedron. 8 units together form a big unit that functions as a cell representing the lattice.
The unit of the F-RD surface is a chamber with tunnels in 4 directions like in a tetrahedron. 8 units together form a big unit that functions as a cell representing the lattice.










