Physical Properties of Crystals: Their Representation by Tensors and Matrices |
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Page 118
... Centre of symmetry . To illustrate the method let us first consider again a crystal possessing a centre of symmetry . The transformation matrix is = - αij -Sij · The transformed piezoelectric moduli are thus , by equation ( 11 ) , dijk ...
... Centre of symmetry . To illustrate the method let us first consider again a crystal possessing a centre of symmetry . The transformation matrix is = - αij -Sij · The transformed piezoelectric moduli are thus , by equation ( 11 ) , dijk ...
Page 278
... symmetry elements into which the symmetry of any array can be analysed , together with the operation asso- ciated with each element , is as follows : ( i ) centre of symmetry : taking an origin of coordinates at the centre of sym- metry ...
... symmetry elements into which the symmetry of any array can be analysed , together with the operation asso- ciated with each element , is as follows : ( i ) centre of symmetry : taking an origin of coordinates at the centre of sym- metry ...
Page 280
... symmetry elements of the 32 point groups Symmetry element centre of symmetry . mirror plane 1 - fold ( monad ) . 2 - fold ( diad ) 3 - fold ( triad ) . 4 - fold ( tetrad ) . 6 - fold ( hexad ) . Symbol on stereogram no symbol full line ...
... symmetry elements of the 32 point groups Symmetry element centre of symmetry . mirror plane 1 - fold ( monad ) . 2 - fold ( diad ) 3 - fold ( triad ) . 4 - fold ( tetrad ) . 6 - fold ( hexad ) . Symbol on stereogram no symbol full line ...
Contents
THE GROUNDWORK OF CRYSTAL PHYSICS | 3 |
3 | 29 |
EQUILIBRIUM PROPERTIES | 51 |
23 other sections not shown
Common terms and phrases
angle anisotropic applied axial B₁ biaxial birefringence centre of symmetry Chapter coefficients components conductivity constant crystal classes crystal properties crystal symmetry cube cubic crystals D₁ defined denoted diad axis dielectric dijk direction cosines displacement electric field ellipsoid equal equation example expression follows forces given grad H₁ H₂ heat flow Hence hexagonal indicatrix isothermal isotropic k₁ magnetic magnitude matrix notation measured moduli monoclinic number of independent Onsager's Principle optic axis optical activity orientation orthorhombic Ox₁ P₁ parallel Peltier permittivity perpendicular photoelastic 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 S₁ scalar second-rank tensor shear shown strain stress symmetry elements Table temperature gradient thermal expansion thermodynamics thermoelectric effects Thomson heat tion transformation law triclinic trigonal uniaxial values wave normal x₁ zero әт