## Physical Properties of Crystals: Their Representation by Tensors and Matrices |

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polarization when their temperature is changed. Alternatively, if a ... In the first

case, with the crystal clamped, the

**Pyroelectricity**Certain crystals have the property of developing an electricpolarization when their temperature is changed. Alternatively, if a ... In the first

case, with the crystal clamped, the

**effect**observed is called primary**pyroelectricity**.Page 190

Since (dD/dT)f is relatively so small, a small error in the determination of (dD/dT),,

may make the difference between finding a finite primary

The relation of secondary

Since (dD/dT)f is relatively so small, a small error in the determination of (dD/dT),,

may make the difference between finding a finite primary

**effect**and none at all.fThe relation of secondary

**pyroelectricity**to the crystal symmetry is a question ...Page 191

These in turn can produce a polarization by piezoelectric

the experiments are carefully performed, can be mistaken for primary or

secondary

the thermal, ...

These in turn can produce a polarization by piezoelectric

**effects**, which, unlessthe experiments are carefully performed, can be mistaken for primary or

secondary

**pyroelectricity**. Fios. 10.1 a and 6 summarize the relations betweenthe thermal, ...

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### Contents

THE GROUNDWORK OF CRYSTAL PHYSICS | 3 |

EQUILIBRIUM PROPERTIES | 51 |

ELECTRIC POLARIZATION | 68 |

69 other sections not shown

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### Common terms and phrases

angle anisotropic applied biaxial birefringence centre of symmetry Chapter coefficients conductivity crystal classes crystal properties crystal symmetry cube cubic crystals defined denoted diad axis dijk direction cosines electric field electro-optical effect ellipsoid equal equation example expression follows force given gives heat flow Hence hexagonal indicatrix isothermal isotropic lattice left-handed magnetic magnitude matrix notation measured moduli monoclinic number of independent Onsager's Principle optic axis optical activity orientation permittivity perpendicular photoelastic effect piezoelectric effect plane plate point group positive principal axes produced pyroelectric effect quadric quantities radius vector referred refractive index relation representation quadric represents right-handed rotation scalar second-rank tensor set of axes shear shown shows strain stress suffix notation symbol 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