Condensed Matter Physics Ii

This course introduces advanced concepts in solid state physics with particular attention to theoretical approaches. Theories and models; approaches to many-body problem; collective phenomena Structure and bonding - order and disordered; types of bonding and structure; electrons in periodic potential, Bloch theorem; tight-binding; 1D chain and polymer; band structure of real materials; optical transition and photoemission Interactions - effective medium approximation for electron-electron interaction; Hartree-Fock theory; exchange and correlation energy; electron fluid and screening; exclusion principle and quasiparticles Transport and scattering - crystal momentum; neutron scattering; electron-phonon scattering; optical conductivity; Drude theory, plasmons; transport in electric and magnetic fields; quantization of orbits, cyclotron resonance; de Haas-van Alphen effect; Fermi surfaces; magnetoresistance oscillation; quantum Hall effect Semiconductors - thermal equilibrium of quasiparticles; field effect transistor; pn junctions, LED; exciton, heterostrutures, quantum well, semiconductor laser Magnetism - origin moments and interactions, ferromagnetism; itinerant magnetism, Stoner model; strongly interacting systems, Mott insulator