Introduction Purposes of solid state physics Bloch theory Crystal bond types Lattice oscillations Longitudinal oscillations of a string Oscillations of an atomic chain Electron states. Single particle approach Free electrons, Fermi energy Empty lattice model Nearly free electron approximation Tight binding model Kronig-Penny model Effective mass, shallow impurities Electron-electron interaction Hartry and Hartry-Fock approximation Second order perturbation theory Wigner crystal Screening, plasma oscillations Gell-Mann method Electron-phonon interaction Froelich Hamiltonian Polarons Kinetic effects in metals and semiconductors Conductivity Heat conductivity Thermoelectric, galvanomagnetic and thermomagnetic phenomena Junction phenomena Potential barrier Einstein relation, equilibrium conditions Volume charge, enriched layer and barrier layer Current vs. voltage characteristics of junctions Magnetic properties of solids Orbital and spin magnetism Curie-Weiss law, ferromagnetism Antiferromagnetism, Ising model Metal-insulator transitions Green functions Interaction representation Ideal Fermi-gas Wick's theorem Ground state energy Interaction of radiation with matter Optical absorption in semiconductors Franz-Keldysh effect Exitons Electron-hole liquid Semiconductor heterostructures Heterostructure types and fabrication methods Properties of heterostructures   LITERATURE: V.L. Bonch-Bruyevich, S.G. Kalashnikov. Physics of Semiconductors A.I. Anselm. Introduction to the Theory of Semiconductors A.A. Abrikosov. Introduction to the Theory of Normal Metals A.A. Abrikosov, L.P. Gorkov, I.E. Dzyaloshinsky. Methods of Quantum Field Theory in Statistical Physics C. Kittel. Quantum Theory of Solids J.M. Ziman. Principles of the Theory of Solids D. Pines. Elementary Excitations in Solids