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

Paladugu, M and Zou, J and Guo, Y-N and Zhang, X and Kim, Y and Joyce, HJ and Gao, Q and Tan, HH and Jagadish, C (2008) Nature of heterointerfaces in GaAs/InAs and InAs/GaAs axial nanowire heterostructures. Applied Physics Letters, 93. ISSN 0003-6951

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Abstract

The structural and compositional characteristics of heterointerfaces of Au-catalyzed GaAs/InAs and InAs/GaAs axial nanowire heterostructures 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 elements with the catalyst material. © 2008 American Institute of Physics.

Item Type: Article
Subjects: UNSPECIFIED
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Depositing User: Cron job
Date Deposited: 04 Feb 2015 22:05
Last Modified: 01 May 2015 19:03
DOI: 10.1063/1.2978959