Microscopic characterization of Fe nanoparticles formed on SrTiO3(001) and SrTiO3(110) surfaces
نویسنده
چکیده
Fe nanoparticles grown on SrTiO3 (STO) {001} and {110} surfaces at room temperature have been studied in ultrahigh vacuum by means of transmission electron microscopy and scanning tunnelling microscopy. It was shown that some Fe nanoparticles grow epitaxially. They exhibit a modified Wulff shape: nanoparticles on STO {001} surfaces have truncated pyramid shapes while those on STO {110} surfaces have hexagonal shapes. From profile-view TEM images, approximate values of the adhesion energy of the nanoparticles for both shapes are obtained.
منابع مشابه
NORTHWESTERN UNIVERSITY Atomic Surface Structures of Oxide Materials: From Single Crystals to Nanoparticles DISSERTATION SUBMITTED TO THE GRADUATE SCHOOL IN PARTIAL FULFILLMENT OF THE REQUIREMENT For the degree DOCTOR OF PHILOSOPHY
Atomic Surface Structures of Oxide Materials: From Single Crystals to Nanoparticles Yuyuan Lin Atomic surface structures of oxide materials are very important in many areas. Despite the importance, these structures are not fully understood, especially for the nanoparticles. In this study, the atomic surface structures of SrTiO3 single crystals, SrTiO3 nanocuboids, and CeO2 nanoparticles are inv...
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