Evolution of the InAs wetting layer on GaAs(001)-c(4×4) on the atomic scale
Evolution of the InAs wetting layer on GaAs(001)-c(4×4) on the atomic scale
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GaAs(001)-c(4×4)上InAs润湿层原子尺度的演化
DOI:
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发表时间:
2009
期刊:
影响因子:
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通讯作者:
H. Eisele
中科院分区:
文献类型:
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作者:
J. Grabowski;Christopher Prohl;B. Höpfner;M. Dähne;H. Eisele
Scanning tunneling microscopy was used to investigate the development of the InAs wetting layer on the GaAs(001)-c(4×4) surface. At low InAs coverages signatures of indium agglomerations form on the surface, before an abrupt change to a (4×3) reconstructed monolayer of In2/3Ga1/3As occurs at about 2/3 ML of deposited InAs. Further indium deposition leads to a second layer with α2(2×4) and β2(2×4) structural units on the surface.