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

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Page 268

(a) Using the boundary condition \f/ = 0 on the surfaces of a cube of side L, find all

the

each level, (c) What is the degeneracy of each level? That is, what is the number

...

(a) Using the boundary condition \f/ = 0 on the surfaces of a cube of side L, find all

the

**wave functions**for the first four distinct energy levels, (b) Give the energy ofeach level, (c) What is the degeneracy of each level? That is, what is the number

...

Page 274

wave. If the potential energies of fa and fa differ by an amount AE we have,

referring to Fig. 11.1(b), an energy gap of width AE. The

will be fa, and the

wave. If the potential energies of fa and fa differ by an amount AE we have,

referring to Fig. 11.1(b), an energy gap of width AE. The

**wave function**at points Awill be fa, and the

**wave function**above the energy gap at points B will be fa.Page 284

there is a certain inconsistency between the discussion of the preceding chapter,

in which we emphasized the usefulness of the free electron model as applied to ...

**WAVE FUNCTIONS**FOR ZERO WAVE VECTOR It may appear to the reader thatthere is a certain inconsistency between the discussion of the preceding chapter,

in which we emphasized the usefulness of the free electron model as applied to ...

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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