## Introduction to Solid State Physics |

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Page 176

Derivation of Force Constants from Experimental Dispersion

metals the effective forces may be of quite long range. Effects have been found

which connect planes of atoms separated by as many as twenty- planes.11 It is

quite ...

Derivation of Force Constants from Experimental Dispersion

**Relation**In manymetals the effective forces may be of quite long range. Effects have been found

which connect planes of atoms separated by as many as twenty- planes.11 It is

quite ...

Page 184

... is the LO frequency, both for small K The

-Sachs-Teller

for ferroelectricity (Chapter 14) What is the physical significance of a pole (an ...

... is the LO frequency, both for small K The

**relation**(52) is known as the Lyddane-Sachs-Teller

**relation**.18 Notice that e(0) — » oo as «r— » 0; this has implicationsfor ferroelectricity (Chapter 14) What is the physical significance of a pole (an ...

Page 695

The dispersion

Bragg

undamped wave cannot propagate in the crystal when the Bragg

satisfied .

The dispersion

**relation**exhibits forbidden bands at values of k that satisfy theBragg

**relation**2k . ... band the wavevectors are not real ; this means that anundamped wave cannot propagate in the crystal when the Bragg

**relation**issatisfied .

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### Contents

CRYSTAL STRUCTURE | 1 |

CRYSTAL DIFFRACTION AND THE RECIPROCAL LATTICE | 59 |

CRYSTAL BINDING | 95 |

Copyright | |

31 other sections not shown

### Common terms and phrases

applied approximation atoms band boundary calculated called cell Chapter charge components concentration condition conduction consider constant contribution crystal cubic defined density dependence determined direction discussed dislocation effect electric field electron energy energy gap equal equation excited experimental experiments factor Fermi surface Figure free electron frequency function given gives hole impurity increased interaction ions lattice length lower magnetic field mass mean measurements metal modes motion normal observed obtain orbital parallel particle periodic phase phonon Phys physics plane polarization positive potential primitive problem properties quantum reciprocal lattice referred reflection region relation resistivity resonance result scattering semiconductor shown in Fig solid solution space specimen sphere structure superconducting surface Table temperature theory thermal tion transition unit valence values vector volume wave wavevector zero zone