Collapse of static magnetization of anisotropic superconductors of the second type

The effect of damping the static magnetization (collapse of magnetization) of the anisotropic strong superconductor through the alternating magnetic field is studied experimentally and theoretically. The measurements were carried out in the mutually orthogonal direct and alternating magnetic fields H and h(t), parallel to the sample surface Y-123. It is established, that the amplitude of the alternating field, wherein complete damping of the magnetization takes place, essentially depends on the fields orientation relative to the sample crystallographic axes. The dynamics of the magnetization collapse is studied and it is established, that in the number of cases the magnetic moment nonmonotonously changes with the growth of the alternating field amplitude