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

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Page 48

heavy holes and light holes exist, but the shape of the bands is not known with

complete certainty. The

mass is very small (0.013 m), hence the density of states is low. There is

evidence ...

heavy holes and light holes exist, but the shape of the bands is not known with

complete certainty. The

**conduction band**has its minimum at fc = 0; the effectivemass is very small (0.013 m), hence the density of states is low. There is

evidence ...

Page 262

It is assumed here that m* and g* are independent of energy which is the

situation that holds for strictly parabolic bands and may, in InSb, be taken as

describing the situation in the immediate vicinity of the bottom of the

It is assumed here that m* and g* are independent of energy which is the

situation that holds for strictly parabolic bands and may, in InSb, be taken as

describing the situation in the immediate vicinity of the bottom of the

**conduction****band**. 2'9.Page 416

It is experimentally found to be an insulator, but this is because there are no d-

electrons on the cations, hence the

sodium can be added to the lattice, to form the so-called « tungsten bronzes », in

...

It is experimentally found to be an insulator, but this is because there are no d-

electrons on the cations, hence the

**conduction band**is normally empty. However,sodium can be added to the lattice, to form the so-called « tungsten bronzes », in

...

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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