Emmrich, Matthias and Huber, Ferdinand and Pielmeier, Florian and Welker, Joachim and Hofmann, Thomas and Schneiderbauer, Maximilian and Meuer, Daniel and Polesya, Svitlana and Mankovsky, Sergiy and Koedderitzsch, Diemo and Ebert, Hubert and Giessibl, Franz J. (2015) Subatomic resolution force microscopy reveals internal structure and adsorption sites of small iron clusters. SCIENCE, 348 (6232). pp. 308-311. ISSN 0036-8075, 1095-9203
Full text not available from this repository. (Request a copy)Abstract
Clusters built from individual iron atoms adsorbed on surfaces (adatoms) were investigated by atomic force microscopy (AFM) with subatomic resolution. Single copper and iron adatoms appeared as toroidal structures and multiatom clusters as connected structures, showing each individual atom as a torus. For single adatoms, the toroidal shape of the AFM image depends on the bonding symmetry of the adatom to the underlying structure [ twofold for copper on copper(110) and threefold for iron on copper(111)]. Density functional theory calculations support the experimental data. The findings correct our previous work, in which multiple minima in the AFM signal were interpreted as a reflection of the orientation of a single front atom, and suggest that dual and triple minima in the force signal are caused by dimer and trimer tips, respectively.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | SCANNING TUNNELING MICROSCOPE; METAL-SURFACE; CO MOLECULES; DYNAMICS; ATOM; MANIPULATION; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Chair Professor Giessibl > Group Franz J. Giessibl |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 22 Jul 2019 12:18 |
| Last Modified: | 22 Jul 2019 12:18 |
| URI: | https://pred.uni-regensburg.de/id/eprint/5632 |
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