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

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Page 111

The

for tensors of the first and second ranks which we gave in Chapter I, § 3. Tensors

were there

The

**definition**of a third-rank tensor is obtained by an extension of the**definition**for tensors of the first and second ranks which we gave in Chapter I, § 3. Tensors

were there

**defined**by means of their transformation laws. A physical quantity ...Page 175

Hence <t> itself is a function of (cry, T), and therefore, from equation (16), ^ w

Differentiating the first of these equations with respect to T, and the t Since only

changes in U and S are

each ...

Hence <t> itself is a function of (cry, T), and therefore, from equation (16), ^ w

Differentiating the first of these equations with respect to T, and the t Since only

changes in U and S are

**defined**by equations (11) and (13), these quantitieseach ...

Page 276

An ideal crystal is

lattice; by this is meant (a) that the atomic arrangement appears the same, and in

the same orientation, when viewed from all the lattice points, and ...

An ideal crystal is

**defined**to be a body in which the atoms are arranged in alattice; by this is meant (a) that the atomic arrangement appears the same, and in

the same orientation, when viewed from all the lattice points, and ...

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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