A method for determining magnetic anisotropy parameters of a thin single-crystal film on vicinal (111)
substrate as well as substrate miscut angles from angular dependence of ferromagnetic resonance field has been
proposed. The method is based on the following: (i) a new approach for the solution of the system of nonlinear
equations for equilibrium and resonance conditions; (ii) a new expression of the objective function for the fitting
problem. The study of the iron silicide films grown on vicinal Si(111) substrates with different miscut angles
confirmed the efficiency of the method. The proposed method can be easily generalized to determine parameters
of single-crystal films grown on substrates with an arbitrary cut.