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

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Page 217

We have recently used this method with, we hope, a higher accuracy than

heretofore, to measure the mass of holes and electrons in germanium (taking due

account of the multivalley features of the energy bands). For electrons we

We have recently used this method with, we hope, a higher accuracy than

heretofore, to measure the mass of holes and electrons in germanium (taking due

account of the multivalley features of the energy bands). For electrons we

**obtained**a ...Page 261

The radius of the orbit that the carrier describes is just v l/2(n + 1)« \ m*COc ' so

that the dipole moment er, as

agrees with that

°K, ...

The radius of the orbit that the carrier describes is just v l/2(n + 1)« \ m*COc ' so

that the dipole moment er, as

**obtained**semiclassically, is /2(»i + l)ehc whichagrees with that

**obtained**by Dingle. If we calculate the radius corresponding to 4°K, ...

Page 522

this results with the mass ratio

2K+1 1 <r,u, 3 S„ 2(K+l) xi n,excev, for t,/t± of 1.24 is

compared with a value of 1.18

magnetoresistance ...

this results with the mass ratio

**obtained**from cyclotron resonance, a value „ 9kT2K+1 1 <r,u, 3 S„ 2(K+l) xi n,excev, for t,/t± of 1.24 is

**obtained**. This is to becompared with a value of 1.18

**obtained**by Herring et al. [4] frommagnetoresistance ...

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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