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

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Page 23

The following Table compares the unperturbed and perturbed energies in the

...

The following Table compares the unperturbed and perturbed energies in the

**example**for r„ = 0.1 at several values of k. First band Second band k I This**example**demonstrates also the already mentioned fact that cEjck normally to the...

Page 30

The reduction will be examined in detail in one

free electron correspondence. Two general theorems hold about irreducible

representations (for their proof, see textbooks): a) The number of irreducible ...

The reduction will be examined in detail in one

**example**w"hen dealing with thefree electron correspondence. Two general theorems hold about irreducible

representations (for their proof, see textbooks): a) The number of irreducible ...

Page 189

For

) occurs, drift velocities of carriers are so large that carriers can be swept through

a sample of reasonable size in a time much less than a lifetime. We will give an ...

For

**example**at high electric fields where additional complication of //=f unction (E) occurs, drift velocities of carriers are so large that carriers can be swept through

a sample of reasonable size in a time much less than a lifetime. We will give an ...

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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