Figure 4: Calculated and experimental angular separations of the moments of the two Fe films as a function of applied field. The angles are defined pictorially in the inset. The calculated points are obtained by minimizing the energy expressions of Eqns. 1 and 2, all parameters being held fixed. The "experimental" DeltaPhi points are obtained by transforming the data of Fig. 2 according to Eqn. 4.