Hydrogenic impurity states in a quantum well wire
作者:
Johnson Lee,
Harold N. Spector,
期刊:
Journal of Vacuum Science&Technology B: Microelectronics Processing and Phenomena
(AIP Available online 1984)
卷期:
Volume 2,
issue 1
页码: 16-20
ISSN:0734-211X
年代: 1984
DOI:10.1116/1.582906
出版商: American Vacuum Society
关键词: impurities;hydrogen;barrier height;binding energy;wires;impurity states;semiconductor materials;GaAs
数据来源: AIP
摘要:
A variational calculation of hydrogenic impurity binding energies in quantum well wires has been performed. The binding of the hydrogenic impurity has been calculated as a function of the transverse dimensions of the wire. It is found that the binding energy of the hydrogenic impurity increases as the ratio of the Bohr radius of the impurity in a bulk semiconductor to the transverse dimension of the wire increases. To test the sensitivity of the binding energies to the trial wave function we have used in our calculations, we use a wave function of the same type to calculate the binding energy of hydrogenic impurities confined in a quasi‐two‐dimensional quantum well as a function of well width and compare our results for the binding energies to the results obtained by Bastard [Phys. Rev. B24, 4714 (1981)].
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