## Introduction to Solid State Physicsproblems after each chapter. |

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Page 128

K)" ( \ wave vector less than^fc is /e3/2n-2, per

number of modes with wave vector in dk at k is (6.23) w(k) dk = d(k3/2r2) = (3fc2/

2x2) dk. We recall from (5.14) that the number of modes having angular

frequency in ...

K)" ( \ wave vector less than^fc is /e3/2n-2, per

**unit volume**of sample. Thenumber of modes with wave vector in dk at k is (6.23) w(k) dk = d(k3/2r2) = (3fc2/

2x2) dk. We recall from (5.14) that the number of modes having angular

frequency in ...

Page 258

energy per

E) = f* Eg(E) dE, we have from (10.75), at low temperatures, (10.84) U = [" Eg{E)

dE + ^ (kT)* (гл?) ] ^U0 + [Er - EF{0))E,(0)g[E,(0)] + {kT)*^Ep{0)], using (10.68) ...

energy per

**unit volume**is given by (10.82) U - /0" Ef(E)g(E) dE. Setting (10.83) F(E) = f* Eg(E) dE, we have from (10.75), at low temperatures, (10.84) U = [" Eg{E)

dE + ^ (kT)* (гл?) ] ^U0 + [Er - EF{0))E,(0)g[E,(0)] + {kT)*^Ep{0)], using (10.68) ...

Page 313

a = (o/2)(i + j + k); (12.2) b = (a/2)(-i + j + k); c = (o/2)(-i- j + k); where a is the side

of the conventional

cube edges. The

...

a = (o/2)(i + j + k); (12.2) b = (a/2)(-i + j + k); c = (o/2)(-i- j + k); where a is the side

of the conventional

**unit**cube and i, j, k are orthogonal**unit**vectors parallel to thecube edges. The

**volume**of the primitive cell is (12.3) F = a-bXc = W; we see that...

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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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absorption acceptors alkali alloy approximately atoms axes axis barium titanate boundary Bragg Brillouin zone calculated chapter charge conduction band conduction electrons crystal structure cube cubic Curie point Debye density dielectric constant diffraction diffusion dipole direction discussion dislocation distribution domain effective mass elastic electric field energy equation equilibrium exciton experimental F centers factor Fermi ferroelectric ferromagnetic free electron frequency germanium given heat capacity hexagonal holes impurity interaction ionization ions lattice constant lattice point levels low temperatures magnetic field metals molecules motion nearest neighbor normal observed orbital p-n junction paramagnetic particles phonons Phys physics plane polarizability polarization positive potential Proc recombination region resonance result room temperature rotation semiconductor Shockley shown in Fig sodium chloride solid solution space group specimen spin superconducting surface susceptibility symmetry Table theory thermal tion transistor transition unit volume vacancies valence band values vector velocity wave functions wavelength x-ray zero