Laws of Volume Elasticity in Formation of Phase Transitions

In the present work we consider the mechanism of elastic strains and stresses as the main controlling factor of structure change under the effect of temperature, magnetic field, hydrostatic pressure. We should take into account that the energy of elastic deformation is commensurate to the energy of electric interactions and that is much higher than the rest of the bonds of lower energy value. Besides, the energy of elastic stresses is of long range, so it forms the linearity in magnetization and bulk change. These regularities require a fundamental understanding of the laws of interaction with respect to accepted interpretation of quantum mechanical forces of short range that are attributes of magnetism formation.