Doublet state of resonantly coupled AlGaAs/GaAs quantum wells grown by metalorganic chemical vapor deposition
作者:
H. Kawai,
J. Kaneko,
N. Watanabe,
期刊:
Journal of Applied Physics
(AIP Available online 1985)
卷期:
Volume 58,
issue 3
页码: 1263-1269
ISSN:0021-8979
年代: 1985
DOI:10.1063/1.336119
出版商: AIP
数据来源: AIP
摘要:
Quantum‐mechanically coupled well systems consisting of two GaAs wells 30 A˚ thick separated by an Al0.5Ga0.5As barrier whose thickness was varied from 12 to 40 A˚ have been grown by metalorganic chemical vapor deposition. The photoluminescence spectra of these systems indicated the splitting of a degenerate single well state into a doublet state, a symmetrical state, and an antisymmetric state. The location of the spectrum peak and shoulders agreed well with the calculated energies using Dingle’s connection rule which assumes 85% conduction band offset and the continuous first derivative of the wave function across the AlGaAs/GaAs heterojunction. Two other connection rules were tried, but the agreement was worse.
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