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

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Page 78

total free energy of this four-

+ Na/iB + NCiuc + NDflD where (23) do (47) ^A^\3JT) ' etc., and where the

quantities [iA, fiB etc. are called the thermodynamic potentials of the

A, B, ...

total free energy of this four-

**component**system may be written as: (46) 0 = NApA+ Na/iB + NCiuc + NDflD where (23) do (47) ^A^\3JT) ' etc., and where the

quantities [iA, fiB etc. are called the thermodynamic potentials of the

**components**A, B, ...

Page 126

Now in every phase for n

order to completely describe its composition. Therefore in order to describe the

system completely r(n — 1) + 2 data are needed, the term 2 originating from the ...

Now in every phase for n

**components**(n — 1) mole fractions are necessary inorder to completely describe its composition. Therefore in order to describe the

system completely r(n — 1) + 2 data are needed, the term 2 originating from the ...

Page 516

For the i'th valley, the variation 8EW of each such level is presumed to be the

same linear homogeneous function of the strain

tensor with

...

For the i'th valley, the variation 8EW of each such level is presumed to be the

same linear homogeneous function of the strain

**components**: Here c is the straintensor with

**components**e„. Since &Em must be a scalar, the set of coefficients Sr,...

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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