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Title: Heteroepitaxial growth of quantum wire arrays through prepatterning substrate surfaces
Authors: Liu, P.
Lu, C.
Zhang, Y.-W. 
Lam, K.-Y.
Issue Date: 2007
Citation: Liu, P., Lu, C., Zhang, Y.-W., Lam, K.-Y. (2007). Heteroepitaxial growth of quantum wire arrays through prepatterning substrate surfaces. Applied Physics Letters 91 (9) : -. ScholarBank@NUS Repository.
Abstract: The present work uses three-dimensional computer simulations to investigate the formation of regularly distributed quantum wire arrays via heteroepitaxial growth on prepatterned substrate surfaces. It is found that the propagation of a wavelike surface configuration due to the surface mass diffusion driven by the nonuniform stress distribution dictates the formed wire morphology. Several types of quantum wire arrays can be obtained by controlling growth and prepattern parameters. The formation of these ordered surface structures can be explained by the wavelike propagation of the surface configurations and the evolution of the surface chemical potential during growth. © 2007 American Institute of Physics.
Source Title: Applied Physics Letters
ISSN: 00036951
DOI: 10.1063/1.2778757
Appears in Collections:Staff Publications

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