The effect of the electric field on the photoionization cross-section

被引：1
作者：
Sali, A
Fliyou, M
Loumrhari, H
机构：
[1] Fac Sci, Dept Phys, Meknes, Morocco
[2] ENS, Dept Phys, Bensouda, Fes, Morocco
来源：
NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA D-CONDENSED MATTER ATOMIC MOLECULAR AND CHEMICAL PHYSICS FLUIDS PLASMAS BIOPHYSICS | 1998年 / 20卷 / 06期
关键词：
D O I：
10.1007/BF03185483
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The effect of the electric field on the donor impurity is investigated in the case of a spherical conduction band with the use of a variational procedure. An analytical expression for the photoionization cross-section as a function of photon energy within the effective mass approximation of an impurity atom in an applied field was obtained. The effect of central cell correction by means of a semiempirical short-range potential is taken into account. It has been found that the binding energy and the spectral dependence of the cross-section are very sensitive to the electric field, the shape of the impurity potential and their combined effect.
引用
收藏
页码：823 / 831
页数：9
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