For the structure factor it is useful to add coordinates of the sites. Otherwise both spins will be placed at the origin of the cell.

Matthias

On Apr 16, 2007, at 10:21 AM, Jean-David Picon wrote:

Hi,

Regarding my last questions, if I put 2 vertices in the unit cell without giving their respective positions, what is then the meaning of the structure factor calculated by ALPS ? In other words, what positions of the 2 spins does ALPS use ? Finally, if I give these positions, will I get the structure factor of the crystal of spins ?

Thanks a lot.

Jean-David