## Solid state physics |

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Page 42

The value of N can always be computed, given the/, by noting that/ is the mean

^-JLr+f ...

The value of N can always be computed, given the/, by noting that/ is the mean

**number of electrons**in the one-electron level20 i. Since the total**number of****electrons**N is just the sum over all levels of the mean number in each level, "-I/.-y^-JLr+f ...

Page 317

RATE OF CHANGE OF THE DISTRIBUTION FUNCTION DUE TO COLLISIONS It

is convenient to represent the information in (16.2) in a slightly different way. We

define a quantity (dg(k)/dt )OUI so that the

RATE OF CHANGE OF THE DISTRIBUTION FUNCTION DUE TO COLLISIONS It

is convenient to represent the information in (16.2) in a slightly different way. We

define a quantity (dg(k)/dt )OUI so that the

**number of electrons**per unit volume ...Page 582

The binding energy of the hole is &„ — £„, and when the hole is "ionized" an

additional electron moves into the ... we can calculate the mean

electrons is now ...

The binding energy of the hole is &„ — £„, and when the hole is "ionized" an

additional electron moves into the ... we can calculate the mean

**number of****electrons**at an acceptor level from (28.30) by noting that the state with noelectrons is now ...

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### Contents

The Dmle Theory of Metals | 1 |

The Sommerfeld Theory of Metals | 29 |

Failures of the Free Electron Model | 57 |

Copyright | |

48 other sections not shown

### Other editions - View all

Solid State Physics: Advances in Research and Applications, Volume 42 Henry Ehrenreich Limited preview - 1989 |

### Common terms and phrases

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 crystal structure 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 ions lattice planes 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 Schrodinger 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