Observation of Surfactant Properties of Thallium in the Epitaxial Growth of Indium Arsenide on Gallium Arsenide
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ABSTRACTBecause of the large lattice mismatch between InAs and GaAs, the growth of the former on the (001) surface of the latter undergoes a well-known transition from a layer-by-layer mode to an island mode at an equivalent coverage of 1–2 monolayers (ML). We have observed a suppression of this transition when growth proceeds under a simultaneous thallium flux. The thallium is not significantly incorporated into the InAs layer; however, approximately I ML may remain at the interface. The effect of the thallium on the electronic properties of the InAs is investigated.
2018 ◽
Vol 446
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pp. 125-134
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1998 ◽
Vol 130-132
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pp. 334-339
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