Content area
Abstract
Chapter 3 discusses energy bands in materials and covers concepts from the free-electron model to the tight-binding model and periodic boundary conditions. The discussion moves to many-electron interactions and the exchange-correlation energy in chapter 6, the widely used density functional theory (DFT) in chapter 7, and the dielectric response function in chapter 8. The authors introduce Feynman diagrams and many-body perturbation theory in chapter 13, theories of superconductivity in chapter 14, magnetism in chapter 15,...





