Add missing effective field in jabocian.

src/tetrax/experiments/relax.py

@@ -45,7 +45,7 @@ def jac_spherical(mag_spherical, nx, dA, h_ext, N, N_cub):
     m_z = np.cos(theta)
     mag = np.concatenate((m_x, m_y, m_z))
 
-    h_eff = h_ext #- N.dot(mag).real + N_cub.nonlinear_field(mag)
+    h_eff = h_ext - N.dot(mag).real #+ N_cub.nonlinear_field(mag)
     # TODO include again!
 
     h_x = h_eff[:nx]
@@ -122,4 +122,4 @@ def minimize_gibbs_free_energy(sample, Bext,tol_cg):
         return m_final
     else:
         print("\ndid not work :(\n")
-        return m_ini
\ No newline at end of file
+        #return m_ini
\ No newline at end of file