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Nature of heterointerfaces in GaAs/InAs and InAs/GaAs axial nanowire heterostructures

Paladugu, Mohanchand; Zou, Jin; Guo, Ya-Nan; Zhang, Xin; Kim, Yong; Joyce, Hannah J.; Gao, Qiang; Tan, Hark Hoe; Jagadish, C.


The structural and compositional characteristics of heterointerfaces of Au-catalyzed GaAs/InAs and InAs/GaAs axial nanowireheterostructures were comprehensively investigated by transmission electron microscopy. It has been found that the GaAs/InAs interface is not sharp and contains an InGaAs transition segment, and in contrast, the InAs/GaAs interface is atomically sharp. This difference in the nature of heterointerfaces can be attributed to the difference in the affinity of the group III...[Show more]

CollectionsANU Research Publications
Date published: 2008
Type: Journal article
Source: Applied Physics Letters
DOI: 10.1063/1.2978959


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