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

### From inside the book

Results 1-3 of 48

Page 27

free or completely bound, and such a classification can only be based on the

translations leads to the classification of the various levels of a band by means of

...

free or completely bound, and such a classification can only be based on the

**symmetry**properties of the crystal. We saw already how the**symmetry**undertranslations leads to the classification of the various levels of a band by means of

...

Page 37

For instance the development of the r, wave function will contain one s, one g

function, etc. Exactly which combinations of the 2/ + 1 spherical harmonics of

order I will appear can be determined only by a closer study of the

other ...

For instance the development of the r, wave function will contain one s, one g

function, etc. Exactly which combinations of the 2/ + 1 spherical harmonics of

order I will appear can be determined only by a closer study of the

**symmetry**. Forother ...

Page 44

The first-order term, linear in k, vanishes because of

being a

energy.

The first-order term, linear in k, vanishes because of

**symmetry**, the inversionbeing a

**symmetry**operation of the diamond lattice: in crystals with such a**symmetry**operation the origin of ft-space must always be an extremum for theenergy.

### What people are saying - Write a review

We haven't found any reviews in the usual places.

### Other editions - View all

### Common terms and phrases

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