The anisotropy influence to phase diagram of two-sublattice ferromagnetic with compensation point

The task about equilibrium orientation of two-sublattice ferrimagnetic magnetizations in constant field with anisotropy axis which is parallel to field direction is solved. The cases of anisotropy type “easy axis” and “easy plane” are investigated. It is found the equation system for magnetizations both sublattices with anisotropy. It is proposed the algorithm for numerical resolution of sublattice magnetization orientation corners equation system. It is investigated the anisotropy field by first variant as double relation of anisotropy constant to magnetization and also with dependence of this field from temperature. It is constructed the phase diagrams with both anisotropy field variants and also with direct introduction of anisotropy constant. It is found the difference of diagram in these three cases which consist of different branches levels higher and lower of case when anisotropy is absent. It is introduced the concept of polar anisotropy field which takes into consideration the dependence of anisotropy field from orientation of magnetization. It is shown that the construction of diagram by introducing of polar anisotropy field is equivalent to introducing of anisotropy constant. It is proposed some recommendations for development of this work so as consideration of demagnetizing field, constant anisotropy normalization and possibility of material parameters from phase diagram.