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 139
... momentum operator . This conclusion is confirmed by the fact that the momentum operator , p = ( ħ / i ) V , when acting on gives nk h V nk i h = ▽ ( e1k · ' unk ( r ) ) i h = hk nk + eV Un ( r ) , i ( 8.45 ) which is not , in general ...
... momentum operator . This conclusion is confirmed by the fact that the momentum operator , p = ( ħ / i ) V , when acting on gives nk h V nk i h = ▽ ( e1k · ' unk ( r ) ) i h = hk nk + eV Un ( r ) , i ( 8.45 ) which is not , in general ...
Page 472
... momentum of a phonon to be ħ times its wave vector , then ( 24.6 ) makes an assertion strikingly similar to momentum conservation : The change in neutron momentum is just the negative of the change in total phonon crystal momentum , to ...
... momentum of a phonon to be ħ times its wave vector , then ( 24.6 ) makes an assertion strikingly similar to momentum conservation : The change in neutron momentum is just the negative of the change in total phonon crystal momentum , to ...
Page 503
... momentum , then normal collisions alone cannot bring about full thermodynamic equilibrium , even if there is no temperature gradient present . In fact , it can be shown24 that in the absence of a temperature gradient , if all collisions ...
... momentum , then normal collisions alone cannot bring about full thermodynamic equilibrium , even if there is no temperature gradient present . In fact , it can be shown24 that in the absence of a temperature gradient , if all collisions ...
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