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H. Drexler, D. Leonard, W. Han-sen, J. P. Kotthaus, and P. M.Petroff, “Spectroscopy of Quantum Levels in Charge-Tunable InGaAs Quantum Dots”, Phys. Rev. Lett, Vol. 73, No. 16, 1994, pp. 2252-2255. doi:10.1103/PhysRevLett.73.2252

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• TITLE: Controllable Growth of Ni Nanocrystals Embedded in BaTiO3/SrTiO3 Superlattices

  AUTHORS: Zhengwei Xiong, Weidong Wu

  KEYWORDS: Nanocrystal; Superlattices; Self-organization

  JOURNAL NAME: Modeling and Numerical Simulation of Material Science, Vol.3 No.1B, January 21, 2013

  ABSTRACT: 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.