Solid State Physics: An Introduction to Its Theory

a₁ approximation atomic orbitals axis basis vectors Bloch waves bond boundary conditions Bravais lattice Brillouin zone charge classical cohesive energy considered constant corresponding crystal cubic defined degeneracy degenerate density displacement distribution effect eigenfunctions electric field elements energy bands equilibrium equivalent Fermi surface free electrons frequency given grad Hamiltonian Hartree Hartree-Fock hydrogen identical integral interaction invariant inversion ionic irreducible representations k-space kinetic energy lattice point linear lattice magnetic field matrix metals modes molecule momentum motion normal co-ordinates number of electrons one-dimensional one-electron orthogonal particle periodic phonons plane wave positive potential energy primitive cell quantum mechanics R₁ reciprocal lattice vector result rotation Schrödinger equation semiconductors Show solid solutions space spin square point group symmetry operations theorem theory thermal tion total number transformation translation valence band velocity vibrations volume Wannier function wave function wave vector zero