Solid State PhysicsThis book provides an introduction to the field of solid state physics for undergraduate students in physics, chemistry, engineering, and materials science. |
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Page 142
... occupied level and the lowest un- occupied level ( i.e. , between the " top " of the highest occupied band and the " bottom " of the lowest empty band ) is known as the band gap . We shall find that solids with a band gap greatly in ...
... occupied level and the lowest un- occupied level ( i.e. , between the " top " of the highest occupied band and the " bottom " of the lowest empty band ) is known as the band gap . We shall find that solids with a band gap greatly in ...
Page 226
... occupied levels in the band.23 By exploiting the fact that a completely filled band carries no current , dk dk 0 = v ( k ) one 4 4π3 = occupied 4 v ( k ) + L dk v ( k ) , ( 12.20 ) 4π3 Junoccupied we can equally well write ( 12.19 ) in ...
... occupied levels in the band.23 By exploiting the fact that a completely filled band carries no current , dk dk 0 = v ( k ) one 4 4π3 = occupied 4 v ( k ) + L dk v ( k ) , ( 12.20 ) 4π3 Junoccupied we can equally well write ( 12.19 ) in ...
Page 234
... occupied ( or all unoccupied ) electronic levels lie on orbits that are closed curves or ( b ) some of the occupied and unoccupied levels lie on orbits that do not close on themselves , but are extended or " open " in k - space ...
... occupied ( or all unoccupied ) electronic levels lie on orbits that are closed curves or ( b ) some of the occupied and unoccupied levels lie on orbits that do not close on themselves , but are extended or " open " in k - space ...
Contents
The Drude Theory of Metals | 1 |
The Sommerfeld Theory of Metals | 29 |
Failures of the Free Electron Model | 57 |
Copyright | |
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alkali atomic band structure Bloch boundary condition Bragg plane Bravais lattice Brillouin zone calculation carrier densities Chapter coefficients collisions conduction band conduction electrons contribution crystal momentum density of levels dependence described determined Drude effect electric field electron gas electron-electron electronic levels energy gap equilibrium example Fermi energy Fermi surface Figure frequency given Hamiltonian hexagonal holes impurity independent electron approximation insulators integral interaction ionic crystals k-space k₂ lattice point linear magnetic field metals motion nearly free electron neutron normal modes Note number of electrons one-electron levels orbits periodic potential perpendicular phonon Phys plane waves primitive cell primitive vectors problem properties quantum reciprocal lattice vector region result scattering Schrödinger equation semiclassical semiclassical equations semiclassical model semiconductors simple cubic solid solution specific heat sphere spin superconducting symmetry temperature term thermal tight-binding valence valence band vanishes velocity wave functions wave vector zero