Proceedings of the International School of Physics "Enrico Fermi.", Volume 22N. Zanichelli, 1963 - Nuclear physics |
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Page 207
... approximation . - The validity of all the above discussion on scattering depends on what is called the Born approximation ( see , for example , SCHIFF [ 17 ] , page 161 ) . The essential assumption is that the change in energy , Aɛ , on ...
... approximation . - The validity of all the above discussion on scattering depends on what is called the Born approximation ( see , for example , SCHIFF [ 17 ] , page 161 ) . The essential assumption is that the change in energy , Aɛ , on ...
Page 489
... approximation is valid will merely increase as & is decreased but will always be finite for nonzero & . However , we have left out one important factor so far and that is the fact that , in any solid , an electron is frequently ...
... approximation is valid will merely increase as & is decreased but will always be finite for nonzero & . However , we have left out one important factor so far and that is the fact that , in any solid , an electron is frequently ...
Page 503
... approximation . We see then that , for currently available magnetic fields , the effective - mass approximation can usually be safely applied to the lowest Landau levels . For higher levels , lying at energies above the band edge where ...
... approximation . We see then that , for currently available magnetic fields , the effective - mass approximation can usually be safely applied to the lowest Landau levels . For higher levels , lying at energies above the band edge where ...
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absorption acceptor approximation band edge band structure Brillouin zone calculated carrier Chem coefficient compound concentration conduction band constant corresponding crystal cyclotron resonance density diffusion direction 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 K,PM K₁ lattice levels linear liquid magnetic field matrix measurements melt mobility momentum N₁ obtained optical p-type phase phonon Phys potential pressure quantum range reciprocal lattice region Rendiconti S.I.F. samples scattering semiconductors shown in Fig solid spin-orbit structure elements symmetry temperature tensor theory thermodynamic potentials transition transverse valence band Voigt effect wave functions wave vector Zeeman effect zero zone