[Zurück]

M. Setvin:
"Combined AFM/STM investigation of oxide surfaces";
Vortrag: Habilitandenseminar der Fakultät Physik, TU Wien; 05.10.2017.

Noncontact atomic force microscopy has gone a long way since its invention in 1986 [1]. It took more than 10
years to achieve atomic resolution [2], and this achievement was followed by demonstration of the capability
of chemical resolution [3], measuring and switching the charge state of a single atom [4], and resolving
chemical bonds within a single organic molecule [5]. Compared to other fields, relatively little work has been
done on oxide surfaces, materials with key importance for many applications. I will present my recent
achievements in this field and explain the associated challenges. I will show ways for imaging clean oxide
surfaces and adsorbed molecules [6], or manipulating a molecule charge state and switching its chemical
reactivity [7, 8]. Further, I will show the strength of the method for exploring new materials: For example
KTaO3, which is one of the most efficient phtoocatalysts, or Eu‐doped NaI, which is used for scintillation.
[1] Binning, G.; Quate, C. F.; Gerber, C., Phys. Rev. Lett. 1986, 56, 930‐933.
[2] Giessibl, F. J., Science 1995, 267, 68‐71.
[3] Sugimoto, Y.; Pou, P.; Abe, M.; Jelinek, P.; Perez, R.; Morita, S.; Custance, O., Nature 2007, 446,64
[4] Gross, L.; Mohn, F.; Liljeroth, P.; Repp, J.; Giessibl, F. J.; Meyer, G., Science 2009, 324, 1428
[5] Gross, L.; Mohn, F.; Moll, N.; Liljeroth, P.; Meyer, G., Science 2009, 325, 1110
[6] Reticcioli, M.; Setvin, M.; Hao, X.; Flauger, P.; Kresse, G.; Schmid, M.; Diebold, U.; Franchini, C. Phys. Rev. X 2017,
(accepted).
[7] Setvin, M.; Hulva, J.; Parkinson, G. S.; Schmid, M.; Diebold, U., PNAS 2017, 114, E2556
[8] Setvin, M.; Aschauer, U.; Scheiber, P.; Li, Y. F.; Hou, W.; Schmid, M.; Selloni, A.; Diebold, U., Science 2013, 341 (6149),
988