Formation of single-domain anatase TiO2(001)-(1×4) islands on SrTiO3(001) after thermal annealing

Silly, Fabien; Castell, Martin R.
October 2004
Applied Physics Letters;10/11/2004, Vol. 85 Issue 15, p3223
Academic Journal
Scanning tunneling microscopy is used to investigate the appearance of nanoscale islands on the SrTiO3(001) surface following cycles of repetitive annealing. Atomic-resolution images reveal that the surface of the islands is covered by features typical of the anatase TiO2(001) surface reconstruction. Small islands display a mixed (1×4) and (1×5) reconstruction, whereas only the single-domain (1×4) reconstruction is observed on large islands. These results reveal a simple process for the creation of single-domain anatase nanoislands.


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