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

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Page 40

A method of representing axial vectors that does not depend on any convention

about a positive screw motion is shown in Fig. 2.2 b. The symbol consists of a line

of definite

A method of representing axial vectors that does not depend on any convention

about a positive screw motion is shown in Fig. 2.2 b. The symbol consists of a line

of definite

**length**and orientation, with a definite sense of rotation attached to it.Page 49

A true (polar) vector can be visualized as an arrow of definite

(Fig. 2.2 o). An axial vector can be visualized as a

orientation and with a definite sense of rotation attached to it (Fig. 2.2 6). Principal

axes ...

A true (polar) vector can be visualized as an arrow of definite

**length**and direction(Fig. 2.2 o). An axial vector can be visualized as a

**length**with a definiteorientation and with a definite sense of rotation attached to it (Fig. 2.2 6). Principal

axes ...

Page 100

6.7) with edges parallel to the principal axes; on straining, the edges remain at

right angles and the

that it is not true to say that the principal axes of strain are in directions which

remain ...

6.7) with edges parallel to the principal axes; on straining, the edges remain at

right angles and the

**lengths**of the edges become (1 +ei), (l+e2), (l+€3)- Noticethat it is not true to say that the principal axes of strain are in directions which

remain ...

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### Contents

THE GROUNDWORK OF CRYSTAL PHYSICS | 3 |

EQUILIBRIUM PROPERTIES | 51 |

ELECTRIC POLARIZATION | 68 |

15 other sections not shown

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### Common terms and phrases

angle anisotropic applied axial vector centre of symmetry Chapter coefficients conductivity constant crystal classes crystal properties crystal symmetry cube cubic crystals defined denoted diad axis dielectric direction cosines displacement dummy suffix electric field ellipsoid equal equation example expression follows force given heat flow Hence hexagonal homogeneous indicatrix isothermal isotropic left-handed length longitudinal magnetic magnitude matrix notation measured moduli monoclinic number of independent Onsager's Principle optical activity orientation parallel Peltier permittivity perpendicular photoelastic effect piezoelectric effect plane plate polarization positive principal axes produced pyroelectric pyroelectric effect quantities radius vector referred refractive refractive index relation representation quadric represented right-handed rotation scalar second-rank tensor set of axes shear stress suffix notation surface susceptibility symmetry elements Table temperature gradient tensile stress thermal expansion thermodynamics thermoelectric effects Thomson heat tion transformation law trigonal uniaxial unit volume values written Young's Modulus zero