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

### From inside the book

Results 1-3 of 35

Page 482

The second term on the right of this espression must be zero, since, by

hypothesis, the band is flat at ft = 0. Hence, using (2.6), we see that the energy

close to the

+ — + - J, ...

The second term on the right of this espression must be zero, since, by

hypothesis, the band is flat at ft = 0. Hence, using (2.6), we see that the energy

close to the

**band edge**is given, correct to second order in k, by (2.12) *„(fc) *„(0)+ — + - J, ...

Page 485

small so that the 8 which characterizes the interaction between the conduction

and valence

validity of our approximation will then be small — this is well known to be so in ...

small so that the 8 which characterizes the interaction between the conduction

and valence

**band edges**can be expected to be abnormally large. The region ofvalidity of our approximation will then be small — this is well known to be so in ...

Page 489

Thus when the field is applied an electron near the

were a free electron with an effective mass equal to the mass associated with the

particular

Thus when the field is applied an electron near the

**band edge**will respond as if itwere a free electron with an effective mass equal to the mass associated with the

particular

**band edge**. However, according to eq. (4.1), the electron's wave ...### 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