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Strain Analysis on MBE Grown InAs/AlSb Ultrathin-Layer Superlattices Using Raman Scattering

Published online by Cambridge University Press:  25 February 2011

Mitsuaki Yano ,
Hiroshi Furuse ,
Masaru Okuizumi  and
Masataka Inoue
Mitsuaki Yano
Affiliation:
New Materials Research Center, Osaka Institute of Technology, Asahi-ku Ohmiya 5–16–1, Osaka 535, Japan
Hiroshi Furuse
Affiliation:
New Materials Research Center, Osaka Institute of Technology, Asahi-ku Ohmiya 5–16–1, Osaka 535, Japan
Masaru Okuizumi
Affiliation:
New Materials Research Center, Osaka Institute of Technology, Asahi-ku Ohmiya 5–16–1, Osaka 535, Japan
Masataka Inoue
Affiliation:
New Materials Research Center, Osaka Institute of Technology, Asahi-ku Ohmiya 5–16–1, Osaka 535, Japan
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Abstract

This paper describes an experimental analysis of strained InAs/AlSb ultrathin-layer superlattices (ULSs) grown by MBE. Interface bonds of InSb or AlAs were selectively made in the ULSs by controlling the beam supply sequence during growth. Structural analysis was performed for ULSs on both InAs and AlSb buffer layers using Raman scattering. This analysis revealed that each constituent in the ULSs was relaxed individually only when the AlAs interface bond was combined with the AlSb buffer layer. Other combinations of the interface bond and buffer layer, however, resulted in a free-standing superlattice structure. These experimental results are consistent with the interface dependence of electron mobility reported for InAs/AlSb single quantum well structures.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 281: Symposium D – Semiconductor Heterostructures for Photonic and Electronic Applications , 1992 , 215
Copyright
Copyright © Materials Research Society 1993

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References

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