Screening effect on polarizabilities of shallow donors and acceptors in finite‐barrier quantum wells
作者:
K. F. Ilaiwi,
期刊:
physica status solidi (b)
(WILEY Available online 1996)
卷期:
Volume 193,
issue 1
页码: 97-103
ISSN:0370-1972
年代: 1996
DOI:10.1002/pssb.2221930109
出版商: WILEY‐VCH Verlag
数据来源: WILEY
摘要:
AbstractPolarizabilities of shallow donors and acceptors in finite‐barrier GaAs/Ga1−xAlxAs quantum wells are calculated using Hasse's variational method within the effective mass approximation. The effect of spatially dependent screening on polarizabilities is taken into account with an r‐dependent dielectric response. It is shown that spatially dependent screening effects can be more important for acceptors than for donors in GaAs/Ga1−xAlxAs quantum wells. The effects of electric and magnetic fields on binding energy are also
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