Electron mobility in semiconductors based on a dielectric-function modification of the Dingle potential
- 15 January 1979
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 19 (2), 925-927
- https://doi.org/10.1103/physrevb.19.925
Abstract
An alternative ionized-impurity potential, embodying a spatially variable dielectric function, has recently been proposed by Csavinszky. Unlike its predecessor, this potential incorporates the behavior of the dielectric function at the origin. The electron conductivity mobilities, calculated for Si and Ge from these potentials, have been compared numerically with the corresponding prediction of the Dingle theory. In a previous Comment, it was shown that the mobility based on the first potential overestimated this prediction. Here, it is found that the second potential is also questionable because it leads to a gross underestimation. A possible reason for this behavior is suggested.Keywords
This publication has 13 references indexed in Scilit:
- Reply to: "Comment on: `Variational principle for Poisson's equation for an impurity ion in a medium with spatially variable dielectric constant' "Physical Review B, 1978
- Comment on: "Variational principle for Poisson's equation for an impurity ion in a medium with spatially variable dielectric constant" by K. R. BrownsteinPhysical Review B, 1978
- Ionized impurity scattering in semiconductors with spatially variable dielectric functionsPhysical Review B, 1978
- Variational principle for Poisson's equation for an impurity ion in a medium with spatially variable dielectric constantPhysical Review B, 1977
- Asymptotic corrections to the potential of impurity ions in semiconductors with spatially variable dielectric constantsPhysical Review B, 1977
- Theory of the screening of impurity ions in semiconductors with spatially-variable dielectric constantsPhysical Review B, 1976
- A variational principle for the potential of impurity ions in semiconductors with spatially variable dielectric constantsInternational Journal of Quantum Chemistry, 1976
- Spatial Dielectric Function of Ge CrystalJournal of the Physics Society Japan, 1965
- Space Dependence of Dielectric Function in Si CrystalJournal of the Physics Society Japan, 1964
- Wave-Number-Dependent Dielectric Function of SemiconductorsPhysical Review B, 1962