Morphologies and Interfacial Structures of Ni Particles on SrTiO₃ Substrates of Different Orientations

Abstract

Ni nanoparticles formed on SrTiO₃ (001) and (110) surfaces are investigated from both horizontal and vertical directions by STM and TEM. Structures and morphologies of the nanoparticles were investigated, and their dependences of morphologies and interfacial structures on surface orientations were found out. Ni nanoparticles mostly possess the modified Wulff construction. While nanoparticles on SrTiO₃ (001) mostly have Ni {001} interfaces, those on SrTiO₃ (110) have either Ni {110} or Ni {111} interfaces. [DOI: 10.1380/ejssnt.2014.391]