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

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Page 219

El6 2 the same as each other (unless t is isotropic) and not the same as E. The

conductivity due to

divided by E is ffl = ng2 \ cos2 6 + — sin2 0 1 , where n is the number of electrons

in ...

El6 2 the same as each other (unless t is isotropic) and not the same as E. The

conductivity due to

**valley**1, which is the component of the current in E directiondivided by E is ffl = ng2 \ cos2 6 + — sin2 0 1 , where n is the number of electrons

in ...

Page 223

In germanium and silicon there is also a shift of band edge with uniaxial strain (

this is the source of coupling between electrons and transverse acoustic phonons

) but the shift of individual

In germanium and silicon there is also a shift of band edge with uniaxial strain (

this is the source of coupling between electrons and transverse acoustic phonons

) but the shift of individual

**valleys**will, in general, be different. If the relative shift ...Page 227

For one

For the other 3

For one

**valley**p and hence the rate of carrier heating by the field, [iE2, is small.For the other 3

**valleys**/< is large. If carrier-carrier scattering is small the 3 high fi**valleys**will contain hotter electrons than the other. Two results will follow: a) the ...### What people are saying - Write a review

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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