## Solid state physics |

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The atomic density n of a crystal (in units of atoms/unit volume) is easily obtained

by considering a single unit cell. For our hypothetical ... However, in physics, we

usually use the primitive unit cell called the

The atomic density n of a crystal (in units of atoms/unit volume) is easily obtained

by considering a single unit cell. For our hypothetical ... However, in physics, we

usually use the primitive unit cell called the

**Wigner**-**Seitz cell**. This cell contains ...Page 14

Note that each line segment which forms a cell boundary is a perpendicular

bisector of a line joining two lattice points. In three dimensions, the case of the sc

lattice is simple. The

.

Note that each line segment which forms a cell boundary is a perpendicular

bisector of a line joining two lattice points. In three dimensions, the case of the sc

lattice is simple. The

**Wigner**-**Seitz cell**is the cube we already showed in Fig. 1-7a.

Page 15

1-15.

Fe is to use the conventional unit cell of. Fig. 1-14. The

-dimensional square lattice. Fig. 1-16. (a) The

.

1-15.

**Wigner**-**Seitz cell**for the two-dimensional centered- rectangular lattice. ofFe is to use the conventional unit cell of. Fig. 1-14. The

**Wigner**-**Seitz cell**for a two-dimensional square lattice. Fig. 1-16. (a) The

**Wigner**-**Seitz cell**for the bcc lattice,.

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### Contents

XRay Diffraction | 37 |

Lattice Vibrations | 61 |

Classical Model of Metals | 89 |

Copyright | |

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### Common terms and phrases

Answer Appendix basis vectors bcc lattice bond Bragg angle Bragg's Law Bravais lattice Brillouin zone called Chapter collisions conduction electrons Consider conventional unit cell Cooper pairs depletion layer diode direction dispersion curve displacement distance doped effective mass elec electric current electric field electrons and holes emitter energy band equal example Fermi energy Fermi level Fermi surface force forward biased free electron free particle frequency given by Eq inside integers ions k-space laser lattice parameter lattice points lattice vector lattice wave magnetic field n-type semiconductor NaCl negative neutrons number of electrons obtain occupied one-dimensional oscillate p-n junction photon positively charged potential energy primitive unit cell Problem rays reciprocal lattice reverse biased sc lattice scattered Schroedinger's equation shown in Fig sodium metal solid structure superconductor temperature tion transistor trons unit cell unoccupied values velocity voltage wave function wave number wave vector wavelength Wigner-Seitz cell wire x-ray diffraction zero