## Proceedings of the International School of Physics "Enrico Fermi.", Volume 22N. Zanichelli, 1963 - Nuclear physics |

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Page 8

Since for our purpose we shall not require the other zones that may be

constructed outside the first, we shall call it simply and somewhat improperly just

the

space, the ...

Since for our purpose we shall not require the other zones that may be

constructed outside the first, we shall call it simply and somewhat improperly just

the

**Brillouin zone**(BZ). Having chosen one reciprocal lattice site as origin of fc-space, the ...

Page 51

For small q, (long wavelength) the chain behaves like a nondispersive medium,

co ac q. For shorter waves the group and wave velocities do not coincide. The

function w2 is periodic in reciprocal space, with the first

...

For small q, (long wavelength) the chain behaves like a nondispersive medium,

co ac q. For shorter waves the group and wave velocities do not coincide. The

function w2 is periodic in reciprocal space, with the first

**Brillouin zone**extending...

Page 57

The number of values of b in the first

corresponds 3n values of coy, although certain modes may be degenerate.

Diagrams of the

cubic ...

The number of values of b in the first

**Brillouin zone**is NiN2N2, and to each therecorresponds 3n values of coy, although certain modes may be degenerate.

Diagrams of the

**Brillouin zones**of cubic, face-centred cubic and body-centredcubic ...

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absorption acceptor approximation assumed band edge band structure Brillouin zone calculated carrier centre charge Chem coefficient components compound concentration conduction band consider constant corresponding crystal curves cyclotron resonance degenerate density diffusion direct transition discussed donor doping effective mass electric field energy gap energy surfaces equation equilibrium example exciton experimental expression Faraday rotation foreign atoms free electron frequency germanium given hence holes imperfections impurity indium antimonide InSb interaction interband ionization ions Journ lattice levels linear liquid magnetic field matrix measurements melt mobility momentum obtained optical p-type phonon Phys potential pressure quantum range reciprocal lattice region samples scattering semiconductors shown in Fig spherical spin spin-orbit structure elements symmetry tensor theory thermodynamic thermodynamic potentials tion transverse valence band valley Voigt effect wave functions wave vector Zeeman effect zero zone