## Introduction to Solid State Physics |

### From inside the book

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Page 17

One-, two-, three-, four-, and six-fold rotation

to rotations by 360°, 180°, 120°, 90°, and ... A crystal structure has a rotation-

inversion

inversion.

One-, two-, three-, four-, and six-fold rotation

**axes**are permissible, correspondingto rotations by 360°, 180°, 120°, 90°, and ... A crystal structure has a rotation-

inversion

**axis**if it is brought into self-coincidence by rotation followed byinversion.

Page 18

Rotation

plane normal to it: X/m or m Rotation

Rotation

with ...

Rotation

**axis**: X Rotation-inversion**axis**: X - - - - - X Rotation**axis**with mirrorplane normal to it: X/m or m Rotation

**axis**with diad**axis**(**axes**) normal to it: X2Rotation

**axis**with mirror plane (planes) parallel to it: Xm Rotation-inversion**axis**with ...

Page 33

1.20a call forth other inversion centers, and a complete plan of a unit of the space

group P1 is shown in Fig. 1.20h. There are thirteen monoclinic space groups; we

illustrate only four of them: P2, containing a rotation diad

1.20a call forth other inversion centers, and a complete plan of a unit of the space

group P1 is shown in Fig. 1.20h. There are thirteen monoclinic space groups; we

illustrate only four of them: P2, containing a rotation diad

**axis**, is shown in Fig.### What people are saying - Write a review

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absorption acceptors alkali alloys approximately atoms axis barium titanate boundary Bragg Brillouin zone calculated chapter charge conduction band conduction electrons crystal structure cube cubic Curie point Debye density dielectric constant diffraction diffusion dipole direction discussion dislocation distribution domain effective mass elastic electric field energy equation equilibrium exciton experimental F centers factor Fermi ferroelectric ferromagnetic free electron frequency germanium given heat capacity hexagonal holes impurity interaction ionization ions lattice constant lattice point low temperatures magnetic field magnetic moment metals molecules motion nearest neighbor normal observed p-n junction paramagnetic particles phonons Phys physics plane polarizability polarization positive potential Proc region resonance result room temperature rotation semiconductor Shockley shown in Fig sodium chloride solid solution space group specimen spin superconducting surface susceptibility symmetry Table theory thermal tion transition unit volume vacancies valence band values vector velocity wave functions wavelength zero