Effective interactions in the binary metallic systems

The basic approach in the microscopic theory of binary metal systems has been developed. The electron-ion model Hamiltonian with nonlocal many-particle interactions was obtained using the statistical operator averaging for the electron-nuclear model over the localized electron states. The role of orthogonalization and exchange effects on the formation of electron-ion interactions is investigated. The transition to the ion metal model with ef-fective manyparticle interactions was performed. Key words: basic approach, electron-nuclei model, electron-ion model, ion model, manyparticle interactions PACS: 71.55.Ak The investigation of manyparticle eective interactions in the binary metallic systems is very interesting from dierent viewpoints. In particular, it is important in interpreting thermodynamic and structural characteristics of alloys and melts, in describing the quantum states of impurities in metals, structure phase transitions etc