Spinodal Decomposition in InSb/AlAs Heterostructures

Journal Article · Thu Nov 15 04:00:00 EST 2018 · Semiconductors

DOI:https://doi.org/10.1134/S1063782618110027· OSTI ID:22749732

Bakarov, A. K.; Gutakovskii, A. K.; Shamirzaev, T. S. ^[1]

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1. Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences (Russian Federation)

The atomic structure and energy spectrum of heterostructures formed in a system of InAs/AlAs binary compounds are studied. The In{sub x}Al{sub 1–x}Sb{sub y}As{sub 1–y} alloy, from which quantum wells are formed in InSb/AlAs structures, decomposes into two phases with different compositions. The characteristic dimensions of regions containing separate phases of the alloy in the structure plane are 5–7 nm. Spinodal decomposition of the alloy brings about the formation of coexisting indirect-gap regions with type-I and type-II energy spectra in quantum wells of the heterostructures.

• OSTI ID: 22749732
• Journal Information: Semiconductors, Journal Name: Semiconductors Journal Issue: 11 Vol. 52; ISSN SMICES; ISSN 1063-7826
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALLOYS
ALUMINIUM ARSENIDES
ENERGY SPECTRA
INDIUM ANTIMONIDES
INDIUM ARSENIDES
QUANTUM WELLS