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

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Page 25

The concept of the

careful definition, because of the lack of parallelism between the vectors involved

. Take electrical conductivity as an example (Fig. 1.7). We apply a field E in a ...

The concept of the

**magnitude**of a property in a given direction is one that needscareful definition, because of the lack of parallelism between the vectors involved

. Take electrical conductivity as an example (Fig. 1.7). We apply a field E in a ...

Page 187

(58) 4.3. The

interactions between the crystal properties we are considering is given when the

given.

(58) 4.3. The

**magnitude**of the effects. The**magnitude**of all the possibleinteractions between the crystal properties we are considering is given when the

**magnitudes**of the partial differential coefficients in equations (27), (28), (29) aregiven.

Page 244

Typical orders of

-12 metres2/newton (= 10-13 cm2/dyne). [Equation (14) is closely similar to the

equation giving the strains of a crystal produced by a field (converse piezoelectric

...

Typical orders of

**magnitude**, in m.k.s. units, are: zijk ~ 10-12 metres/volt, nijk[ ~ 10-12 metres2/newton (= 10-13 cm2/dyne). [Equation (14) is closely similar to the

equation giving the strains of a crystal produced by a field (converse piezoelectric

...

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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