Hi all,
i want to make  (see file source.c)
But i don't  know how  to make Hamiltonian parameters
depending from lattice knot and
change average value Sz at 0.1,0.2,0.3.
My model (see model.xml) is cuprate superconductor La2CuO4 by Moskvin A.S.

Konev Vitalii