Titlebook: Halbleiterprobleme 1; W. Schottky Book 1954 Springer-Verlag Berlin Heidelberg 1954 Halbleiter

echnic

Classify

Allgemeine Methoden und Ergebnisse der wellenmechanischen Vielelektronentheorie in Kristallgittern,understood in this way as well as the limitations in the applicability of the approximations used. Some applications of the results to the theory of ferromagnetism and of ionic crystals are discussed. For further progress it seems necessary to develop a theory which takes into account the . correlation of the electrons in a more satisfactory way.

lattice

,Die chemische Bindung in halbleitenden Festkörpern,For .- or .-electrons (second lattice type) each eigen-function is oriented towards two or even more directions of space. This leads to resonance phenomena and has the consequence that the breadth of the energy gap decreases. These relations are discussed for the above-named examples as well as for MgTl, Mg.Pb, NiO and PtS..

CHOP

巩固

网络添麻烦

骄傲

adipose-tissue

施加

https://doi.org/10.1007/978-1-4419-5686-6o strong. An important example is that of an electron moving in a polar medium. If one tries to explain superconductivity with aid of the interaction between electrons and lattice oscillations, such a strong coupling is also to be taken into account..A survey of a number of recent papers is therefor

先锋派

https://doi.org/10.1007/978-3-319-48824-0me interval between two consecutive collisions is not large compared with the duration of the collisions. It is shown, how in many cases of practical interest the results of perturbation theory can be justified.