## Solid state physics |

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Page 183

Problem 9-7. Find the average distance £ between collisions of conduction

electrons in the sample of sodium metal in Fig. 9-7 at T = 4 K. Answer: 70 //m. 9-6

the ...

Problem 9-7. Find the average distance £ between collisions of conduction

electrons in the sample of sodium metal in Fig. 9-7 at T = 4 K. Answer: 70 //m. 9-6

**Effective Mass**If we apply an external force Fext on an electron in a metal, what isthe ...

Page 188

be Here, we write the

distinguish it from the

9. Show that the acceleration of a hole in a one- dimensional metal is given by Eq

.

be Here, we write the

**effective mass**of the electron as m*n (n for "negative") todistinguish it from the

**effective mass**m* of the hole (p for "positive"). P Problem 9-9. Show that the acceleration of a hole in a one- dimensional metal is given by Eq

.

Page 190

9-9 Cyclotron Resonance The

experimentally with cyclotron resonance. In Chapter 4, we found that free

electrons in the presence of a magnetic field B move in circles with frequency u =

eB/m [Eq.

9-9 Cyclotron Resonance The

**effective mass**of electrons is measuredexperimentally with cyclotron resonance. In Chapter 4, we found that free

electrons in the presence of a magnetic field B move in circles with frequency u =

eB/m [Eq.

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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