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

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Page xiii

For a few properties, such as density, all crystals are

happen to be

and refractive index, and this sometimes leads to the misconception that they are

...

For a few properties, such as density, all crystals are

**isotropic**. Cubic crystalshappen to be

**isotropic**for certain other properties as well, such as conductivityand refractive index, and this sometimes leads to the misconception that they are

...

Page 4

The relation between the electric current density j and the electric field E in (a) an

Ohm's Law, j is parallel to E (Fig. 1.1 «), and the magnitude of j is proportional to

the ...

The relation between the electric current density j and the electric field E in (a) an

**isotropic**conductor and (6) an anisotropic conductor. is**isotropic**and obeysOhm's Law, j is parallel to E (Fig. 1.1 «), and the magnitude of j is proportional to

the ...

Page 142

found to be

given by fourth-rank tensors, are not

numerical example we choose ammonium dihydrogen phosphate (ADP) (class

12m).

found to be

**isotropic**. We now see that the elastic properties of cubic crystals,given by fourth-rank tensors, are not

**isotropic**. (iv) Numerical example. For anumerical example we choose ammonium dihydrogen phosphate (ADP) (class

12m).

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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