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

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Page 74

As an example of the derivation of this

consider the parallel plate condenser of Fig. 4.3 a connected to a battery. If there

is a change in the polarization of the crystal, new surface charges, da and —da

per ...

As an example of the derivation of this

**expression**in a special case we mayconsider the parallel plate condenser of Fig. 4.3 a connected to a battery. If there

is a change in the polarization of the crystal, new surface charges, da and —da

per ...

Page 220

We now calculate from equations (15) and (16) an

production of heat energy. First find an

substitute in (16). Thus, grad/I = -a-1]'-*-1?^^- \ (19) h = a-W+^P-y)^^- J (20) Now

write ...

We now calculate from equations (15) and (16) an

**expression**for the rate ofproduction of heat energy. First find an

**expression**for grad fi from (15) and thensubstitute in (16). Thus, grad/I = -a-1]'-*-1?^^- \ (19) h = a-W+^P-y)^^- J (20) Now

write ...

Page 222

(i) The thermoelectric e.m.f. An

in terms of the Z's for the two metals is obtained by integrating equation (21)

round the circuit of Fig. 12.1. In the steady state je = 0 and (21), which takes the

form ...

(i) The thermoelectric e.m.f. An

**expression**for the thermoelectric e.m.f. in a couplein terms of the Z's for the two metals is obtained by integrating equation (21)

round the circuit of Fig. 12.1. In the steady state je = 0 and (21), which takes the

form ...

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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