Electronic and structural properties of armchair SWCNT/TiO2(110)-(1 x 2) system

Tayran, C.
Elliatioglu, S.
We have presented structural and electronic properties of single-walled carbon nanotubes (CNTs) with armchair chirality on the reconstructed rutile TiO2(110)-(1 x 2) surface by means of ab initio calculations using density functional theory. For the TiO2 surface reconstruction, we have adopted an added-row model which was experimentally proposed in parallel to STM patterns and theoretically agreed by first principle calculations. In this work, we have studied, as examples, two CNTs with different sizes, (3,3) and (6,6), and their adsorption on this surface. The CNTs are observed not to chemisorb on the reconstructed rutile surface with added-rows, however, when it is further reduced, i.e., on the added-row model with the two topmost bridging oxygens removed, we obtained significant binding for the tubes through Ti-C bonds. We have also determined the band structures and the charge densities to discuss the effects and contributions of nanotubes to the gap states.


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Fabrication of superconducting bilayer YBa2Cu3O7-delta (YBCO) thin film structure by Si ion implantation and properties of microbridge patterned on that are presented. YBCO thin film of 150 nm thickness was grown on single crystal (100) SrTiO3 substrate by inverted cylindrical magnetron sputtering. The sample was implanted with 100 keV, 1 X 10(16) Si ions/cm(2). Upon implantation with Si, the sample lost its electrical conductivity and diamagnetism while its crystalline structure was preserved after the ann...
Citation Formats
C. Tayran, M. ÇAKMAK, and S. Elliatioglu, “Electronic and structural properties of armchair SWCNT/TiO2(110)-(1 x 2) system,” SURFACE SCIENCE, pp. 593–596, 2011, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/67299.