Controllable Growth of Ni Nanocrystals Embedded in BaTiO3/SrTiO3 Superlattices


BaTiO3/SrTiO3 superlattices with embedded Ni nanocrystals (NCs) have been grown on SrTiO3 (001) substrate using laser molecular beam epitaxy (L-MBE). In situ reflection high-energy electron diffraction (RHEED) was employed to investigate the process of lattice strain in the self-organization of Ni NCs and the epitaxial growth of BaTiO3/SrTiO3 superlattices. The results indicated that the strain from large lattice mismatch drove the self-organization of Ni NCs. Also, the layer-by-layer growth of BaTiO3/SrTiO3 superlattices Keywords: Nanocrystal; Superlattices; Self-organization 1. Introduction Oxide artificial superlattices, especially (001) oriented BaTiOsuperlattices and the island growth of Ni NCs were controllable ac-curately. The fine alternation of the two processes would provide a possible route to engineer controllably the nano-composite microstructure.

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Z. Xiong and W. Wu, "Controllable Growth of Ni Nanocrystals Embedded in BaTiO3/SrTiO3 Superlattices," Modeling and Numerical Simulation of Material Science, Vol. 3 No. 1B, 2013, pp. 4-8. doi: 10.4236/mnsms.2013.31B002.

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The authors declare no conflicts of interest.


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