Kulij T. Spin fluctuations in disordered ferromagnets

Object of investigations: Disordered Heisenberg ferromagnet. Aim of investigations: Study of the influence of the spin fluctuations on the spin-wave spectrum and magnetic properties. Methods: configurationally averaged Green's function. Results: Method of the self-consistent calculation of the magnetization and the spin fluctuations is suggested; dilute ferromagnet at the low concentration of nonmagnetic impurities is described. Inculcation: The results are used at the Ivan Frako State University of L'viv for the calculation of the magnetic properties of disordered ferromagnets. Application: Theory of disordered spin systems.