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

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Page 33

If Ox1, Ox2, Ox3 are given, two

Ox'l, the latitude and longitude for example; the new axes may still rotate about

Ox\, and so one further

them ...

If Ox1, Ox2, Ox3 are given, two

**angles**are necessary to specify the direction ofOx'l, the latitude and longitude for example; the new axes may still rotate about

Ox\, and so one further

**angle**, an**angle**of rotation about Ox\, is needed to fixthem ...

Page 97

[ey] so defined is a symmetrical tensor, for and [vTij] so defined is an

antisymmetrical tensor, for We see above that the tensor [eij] giving a pure

rotation is antisym-

], that is [ey], ...

[ey] so defined is a symmetrical tensor, for and [vTij] so defined is an

antisymmetrical tensor, for We see above that the tensor [eij] giving a pure

rotation is antisym-

**Angle**metrical. We therefore define the symmetrical part of [eii], that is [ey], ...

Page 264

The ratio of the radii of the two wave surfaces at right

therefore 1 -553/1-544 = 1 -006. The effect of optical activity is slightly to distort

these surfaces to the shape shown by the broken lines. Along the optic axis the ...

The ratio of the radii of the two wave surfaces at right

**angles**to the optic axis istherefore 1 -553/1-544 = 1 -006. The effect of optical activity is slightly to distort

these surfaces to the shape shown by the broken lines. Along the optic axis the ...

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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