## Solid state physics |

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Page 321

greatest analytic simplicity: elastic scattering by fixed substitutional

located at random lattice sites throughout the crystal. This is not an artificial case,

since scattering by the thermal vibrations of the ions (Chapter 26) and electron- ...

greatest analytic simplicity: elastic scattering by fixed substitutional

**impurities**,located at random lattice sites throughout the crystal. This is not an artificial case,

since scattering by the thermal vibrations of the ions (Chapter 26) and electron- ...

Page 577

Thus when

carrier types will be dominant. An extrinsic semiconductor is called "n-type" or "p-

type" according to whether the dominant carriers are electrons or holes. To

complete ...

Thus when

**impurities**do provide the major source of carriers, one of the twocarrier types will be dominant. An extrinsic semiconductor is called "n-type" or "p-

type" according to whether the dominant carriers are electrons or holes. To

complete ...

Page 584

It asserts that the net excess of electrons (or holes) Nd — Na introduced by the

other band has the very much smaller carrier density nj2/(Nd — Na), as required

by ...

It asserts that the net excess of electrons (or holes) Nd — Na introduced by the

**impurities**is almost entirely donated to the conduction (or valence) band; theother band has the very much smaller carrier density nj2/(Nd — Na), as required

by ...

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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