Lecture Notes of Professor Yuri Kagan in Theoretical Solid-State Physics

By Maxim Kagan

Elementary excitations in solid state physics.- Ideal Bose gas.- Interacting Bogoliubov Bose gas.- Superfluid helium Sounds and vortices.- Superfluidity of the two dimensional systems. Berezinskii Kosterlitz Thouless BKT phase transition.- Phonons in the solid state physics.- Density of the phonon states Debye approximation.- Phonon spectrum in crystals with pairwise interaction. Quantization of the lattice vibrations.- Phonon distribution function. Specific heat of the crystal.- Mossbauer effect. Diagonal processes with respect to phonon occupation numbers.- Neutron scattering on crystals.- An harmonic interactions. The damping of the phonon spectrum.- Phonon thermos conductivity in crystals.- Spin waves in ferromagnets. Exchange interaction.- Basic interactions in metals. Ion ion and electron ion interaction.- Electron electron interaction. Exchange hole for the wave function of two electrons with parallel spins.- Correlation energy for the interaction of electrons with opposite spins.- Charge screening in metals in the Random phase approximation.- Metallic hydrogen.- One electron excitations in metals.- Thermodynamics of metals.- Magnetic oscillations in metals.- The Cooper problem.- Many particle problem in the theory of superconductivity.- Thermodynamics of the superconductor.

• Format: Paperback
• Language: English
• ISBN: 3032146208
• ISBN13: 9783032146205
• Release Date: June 2026
• Publisher: Springer
• Length: 537 Pages