## Introduction to Solid State Physicsproblems after each chapter |

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Page 288

34 ) we are led to suspect that a conduction electron may behave in some

respects as if it had an effective

– Ea J = - 1 +m * M L We shall examine the effective

...

34 ) we are led to suspect that a conduction electron may behave in some

respects as if it had an effective

**mass**- 2 5 ( OPz / a / a | p2 | 0 ) ) . ( 11 . 35 ) m EO– Ea J = - 1 +m * M L We shall examine the effective

**mass**concept in the sections...

Page 289

Using ( 11 . 41 ) for dk / dt , we have ( 11 . 43 ) dvo _ d ' E eɛ at - dk2 h2 It

appears on comparison with the classical equation dv / dt = eɛ / m that hp / ( d ' E

/ dk ? ) plays the role of a

11 .

Using ( 11 . 41 ) for dk / dt , we have ( 11 . 43 ) dvo _ d ' E eɛ at - dk2 h2 It

appears on comparison with the classical equation dv / dt = eɛ / m that hp / ( d ' E

/ dk ? ) plays the role of a

**mass**, and we call this quantity the effective**mass**m * : (11 .

Page 293

Although k is increased by Ak by the applied electric field , the consequent Bragg

reflections result in an overall decrease in the momentum of the electron , so that

the effective

Although k is increased by Ak by the applied electric field , the consequent Bragg

reflections result in an overall decrease in the momentum of the electron , so that

the effective

**mass**may be described as being negative . As we proceed from E ...### What people are saying - Write a review

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### Contents

DIFFRACTION OF XRAYS BY CRYSTALS | 44 |

CLASSIFICATION OF SOLIDS LATTICE ENERGY | 63 |

ELASTIC CONSTANTS OF CRYSTALS | 85 |

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alloys applied approximately associated atoms axes axis band boundary calculated cell chapter charge concentration condition conductivity consider constant crystal cubic density dependence determined dielectric diffusion direction discussion dislocation distribution domain effect elastic electric electron elements energy equal equation equilibrium experimental expression factor field force frequency function germanium give given heat capacity hexagonal holes important impurity increase interaction ionic ions lattice levels London magnetic magnetic field mass material measurements metals method motion normal observed obtained parallel particles Phys physics plane polarization positive possible potential present problem properties range reference reflection region relation resistivity result room temperature rotation shown in Fig simple solid solution space space group specimen structure surface symmetry Table temperature theory thermal tion transition unit usually values vector volume wave zero zone