## Physical Properties of Crystals |

### From inside the book

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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 86

However, the lever arm of each of these forces will be an order of

smaller than the lever arm for the shear forces and so the terms may be

neglected. (These forces actually cancel in pairs to the first approximation and so

their total ...

However, the lever arm of each of these forces will be an order of

**magnitude**smaller than the lever arm for the shear forces and so the terms may be

neglected. (These forces actually cancel in pairs to the first approximation and so

their total ...

Page 245

The order of

produces a piezoelectric strain, e = d E. This produces in turn a change in B

given by AB = pe = (pd).E. According to the rough figures we have been using,

the ...

The order of

**magnitude**of the secondary effect may be found as follows. A field Eproduces a piezoelectric strain, e = d E. This produces in turn a change in B

given by AB = pe = (pd).E. According to the rough figures we have been using,

the ...

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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