Microscopic characterization of Fe nanoparticles formed on SrTiO₃(001) and SrTiO₃(110) surfaces

• Miyoko Tanaka

Beilstein J. Nanotechnol. 2016, 7, 817–824, doi:10.3762/bjnano.7.73

• . From profile-view TEM images, approximate values of the adhesion energy of the nanoparticles for both shapes are obtained. Keywords: epitaxial orientation relationship; iron (Fe); nanoparticles; morphology; scanning electron microscopy (SEM); strontium titanate (SrTiO3); transmission electron

• orientation relationship on each substrate. The one on STO(001) surfaces was the cube-on-cube with 45° orientation, namely (001)STO (001)Fe and [100]STO [110]Fe. On the other hand, the one on STO(110) surfaces was a tilted version of this such that (110)STO (110)Fe and [001]STO . Nanoparticles with the

• studied using a UHV–STM/TEM combined system. The surfaces were annealed by electron beam irradiation in UHV before deposition. Oxygen-depleted surface structures were formed for both TEM and STM substrates. Some nanoparticles grow epitaxially on both substrates. They have a single major epitaxial