[Zurück]

E. Zollner, S. Schenk, M. Setvin, S. Förster:
"Perfect Monolayers of the BaTiO₃-Derived 2D Oxide Quasicrystals Investigated by Scanning Tunneling Microscopy and Noncontact Atomic Force Microscopy";
Physica Status Solidi B - Basic Solid State Physics, 57 (2020), S. 19006201 - 19006206.

The atomic structure of the BaTiO3-derived 2D oxide quasicrystals (OQCs) is
investigated using scanning tunneling microscopy (STM) and noncontact atomic
force microscopy (nc-AFM). It is demonstrated that these extraordinary films can
easily be prepared as single-phase monolayers on a Pt(111) support. From
analyzing almost 20 000 atomic vertices, an extended statistical dataset of the
OQC tiling is collected. It manifests that the OQC obeys the statistics of the
Niizeki-Gähler tiling, which is a dodecagonal triangle-square-rhomb model
system. The atomic structure shown by nc-AFM is identical to the contrast
obtained in STM images. The results are discussed with respect to the existing
structural models.

http://dx.doi.org/10.1002/pssb.201900620

https://publik.tuwien.ac.at/files/publik_283209.pdf