## Physical Properties of Crystals |

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Page 69

For this purpose we define the dimensionless constant K = k/ko, (4) known as the

relative permittivity or the

, in place of (2), P = Koxi, Ep. (5) where xú is the

For this purpose we define the dimensionless constant K = k/ko, (4) known as the

relative permittivity or the

**dielectric**constant. In an anisotropic substance we have, in place of (2), P = Koxi, Ep. (5) where xú is the

**dielectric**susceptibility tensor; ...Page 71

Measurements on

anomalies', caused by the fact that the

Consider the following example. A flat slab of

parallel ...

Measurements on

**dielectrics**are complicated by the presence of '**dielectric**anomalies', caused by the fact that the

**dielectrics**are not perfectly insulating.Consider the following example. A flat slab of

**dielectric**is placed between twoparallel ...

Page 72

The relations between D, E and P in a parallel plate condenser If a slab of

of the condenser is increased. It is shown in textbooks on electrostatics that the

ratio of ...

The relations between D, E and P in a parallel plate condenser If a slab of

**dielectric**is placed between the plates of a parallel plate condenser the capacityof the condenser is increased. It is shown in textbooks on electrostatics that the

ratio of ...

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### Contents

THE GROUND WORK OF CRYSTAL PHYSICS | 3 |

Summary | 29 |

EQUILIBRIUM PROPERTIES | 45 |

47 other sections not shown

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### Common terms and phrases

angle anisotropic applied biaxial birefringence centre of symmetry Chapter conductivity constant crystal classes crystal properties crystal symmetry cube cubic crystals defined denoted diad axis dielectric direction cosines displacement elastic compliances electric field electro-optical electro-optical effect ellipsoid equal equation example expression follows forces given gives grad heat flow Hence indicatrix isothermal isotropic magnetic magnitude matrix notation measured moduli Mohr circle monoclinic number of independent Onsager's Principle optic axis optical activity orientation parallel permittivity perpendicular photoelastic effect piezoelectric effect plane plate polarization positive principal axes produced pyroelectric effect quadric radius vector referred refractive index relation representation quadric represents right-handed rotation scalar second-rank tensor shear shown shows strain stress symmetry elements Table temperature gradient thermal expansion thermodynamics thermoelectric effects Thomson heat tion transformation law trigonal uniaxial unit volume values wave normal wave surface written zero