Spinodal Decomposition in InSb/AlAs Heterostructures

D. S. Abramkin; A. K. Bakarov; A. K. Gutakovskii; T. S. Shamirzaev

doi:10.1134/S1063782618110027

Spinodal Decomposition in InSb/AlAs Heterostructures

Authors: Abramkin D.S.¹^,2, Bakarov A.K.¹, Gutakovskii A.K.¹^,2, Shamirzaev T.S.¹^,2^,3
Affiliations:
1. Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences
2. Novosibirsk State University
3. Ural Federal University
Issue: Vol 52, No 11 (2018)
Pages: 1392-1397
Section: Xxii International Symposium “Nanophysics and Nanoelectronics”, Nizhny Novgorod, March 12–15, 2018
URL: https://bakhtiniada.ru/1063-7826/article/view/204265
DOI: https://doi.org/10.1134/S1063782618110027
ID: 204265

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Abstract

The atomic structure and energy spectrum of heterostructures formed in a system of InAs/AlAs binary compounds are studied. The In_xAl_{1 –}_xSb_yAs_{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.

Keywords

Heterostructures, Spinodal Decomposition, Quantum Wells (QW), AlAs Matrix, Quantum Confinement Levels

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Spinodal Decomposition in InSb/AlAs Heterostructures

Full Text

Abstract

Keywords

About the authors

D. S. Abramkin

A. K. Bakarov

A. K. Gutakovskii

T. S. Shamirzaev

Supplementary files