Electronic Properties of Metals, Volume 64The excitation spectrum or band structure of electronics is often interpreted as the electronic structure. This definition is based on the Landau theory of elementary excitations, which shows that the reaction of a many-particle system on a weak external perturbation can be described by nearly non-interacting low-energy excitations of one-particle type. In metals these excitations close to the Fermi energy are only lightly damped. On this basis many electronic properties, especially of metals, can be understood and calculated, a breakthrough which has made a considerable contribution to materials science. This book focuses on the basic principles of solid state physics and in particular on actual problems and recent applications which have not previously been reviewed. At present a common electron theory for all types of solids is developing, unifying the viewing and treatment of the electronic structure and electronic properties of metals and semiconductors. |
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according alloys band structure calculations behaviour Bloch Brillouin zone charge density conduction electrons consequence corresponding Coulomb crystal potential d-bands d³r defects denoted dependence described determined dielectric dielectric function dispersion relation effects eigenvalues elec electron gas electron-phonon interaction electronic structure electrons per atom elementary cell Eschrig excitation experimental Fermi body Fermi energy Fermi surface frequency given Hartree-Fock impurity induced integral ionic ions k-space lattice structure layers Lehmann linear magnetic field many-particle matrix elements method momentum MT sphere nearly free electrons neighbouring obtained one-particle orbits parameter particle phonon Phys physical plane waves properties pseudopotential quantities quantum reciprocal lattice region represents respectively scattering phase shifts Schroedinger equation simple metals solid soliton spherical spin superconductivity symmetry temperature theory transition metals trons valence electrons values wave function width Wigner-Seitz cell yields Ziesche