## Introduction to Solid State Physics |

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Page 8

CLASSIFICATION OF MACROSCOPIC

found experimentally to possess

physical properties in different directions, such as elastic and optical constants

and ...

CLASSIFICATION OF MACROSCOPIC

**SYMMETRY**PROPERTIES Crystals arefound experimentally to possess

**symmetry**in the values of their macroscopicphysical properties in different directions, such as elastic and optical constants

and ...

Page 9

If one half of the crystal is the reflection of the other half in a plane drawn through

the center of the crystal, the crystal possesses a reflection plane as a

element. Center of inversion. A crystal possesses a center of inversion if the ...

If one half of the crystal is the reflection of the other half in a plane drawn through

the center of the crystal, the crystal possesses a reflection plane as a

**symmetry**element. Center of inversion. A crystal possesses a center of inversion if the ...

Page 16

SPACE GROUPS Taking each one of the fourteen space lattices, we can

associate with every lattice point a figure (a molecule or a group of atoms or

molecules) possessing all the

this way a ...

SPACE GROUPS Taking each one of the fourteen space lattices, we can

associate with every lattice point a figure (a molecule or a group of atoms or

molecules) possessing all the

**symmetry**operations of the lattice. We obtain inthis way a ...

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### Contents

LATTICE ENERGY OF IONIC CRYSTALS | 29 |

ELASTIC CONSTANTS OF CRYSTALS | 43 |

LATTICE VIBRATIONS | 60 |

Copyright | |

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### Common terms and phrases

alkali alloy antiferromagnetic applied approximation atoms axes axis barium titanate boundary Brillouin zones calculated charge coefficient conduction band consider crystal structure cube cubic crystal Curie point curve Debye density diamagnetic dielectric constant diffraction dipole direction discussed dislocation displacement distribution domain effect elastic electric field entropy equation equilibrium experimental F-centers factor Fermi ferroelectric ferromagnetic free electron frequency heat capacity holes impurity interaction ionic crystals ions lattice constant lattice points London low temperatures magnetic field mean free path metals molecules motion nearest neighbor normal observed orbital parallel paramagnetic particles perovskite phonons Phys physical plane polarizability polarization positive potential Proc quantum ratio region resonance result room temperature rotation scattering Seitz shear Shockley shown in Fig simple cubic single crystal sodium chloride solids specimen spin superconducting susceptibility symmetry theory thermal tion unit cell unit volume valence values vector velocity wave functions wavelength x-ray zero