Application of dynamical establishment method for phase diagram construction of two-sublattice ferromagnetic with compensation point

The application of dynamical establishment method for phase diagram of two-sublattice ferromagnetic with compensation point is investigated. The task is solved in Decart coordinate system. It is described the motion equations for sublattice magnetizations with relaxation and connection through effective exchange interaction fields. It is investigated the development in time of both magnetizations after initial displacement is assignment. It is found the conditions of magnetization establishment which correspond to minima of energy density of structure as whole. It is found the dependencies of magnetization components from field by assignment temperature. It is found that the breaks in these dependencies correspond to points of beginning and `ending of orientational transition which are presented as lower and upper branches of phase diagram. By temperature variation the whole phase diagram is constructed as whole. It is made the comparison of constructed diagram with diagram which constructed by known methods. It is found the large precision and large simplicity of realization which ensures for dynamical establishment method considerable advantage over known methods. It is proposed some recommendations for further development of investigations.