## Physical Properties of Crystals |

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Page 45

This construction, called the Mohr circle construction,

way Sii, S., and Sía change as the axes of reference are rotated. As Oz in Fig. 2.4

a rotates from Oz, to Oza, 6 changes from 0 to $7, and R moves round the ...

This construction, called the Mohr circle construction,

**gives**a visual picture of theway Sii, S., and Sía change as the axes of reference are rotated. As Oz in Fig. 2.4

a rotates from Oz, to Oza, 6 changes from 0 to $7, and R moves round the ...

Page 222

If we start from one side of the condenser and integrate round the circuit to the

other side the initial and final values of pi are equal, since we are in the same

metal at the same temperature, and so the first term

eAq ...

If we start from one side of the condenser and integrate round the circuit to the

other side the initial and final values of pi are equal, since we are in the same

metal at the same temperature, and so the first term

**gives**zero. We are left witheAq ...

Page 265

We have to distinguish between the direction of propagation, that is, the ray

direction, and the wave normal. The separation of the two wave surfaces in Fig.

14.2 in any radial direction

FIG.

We have to distinguish between the direction of propagation, that is, the ray

direction, and the wave normal. The separation of the two wave surfaces in Fig.

14.2 in any radial direction

**gives**the difference in ray k positive Rok negative a bFIG.

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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