Okabayashi, Norio and Frederiksen, Thomas and Liebig, Alexander and Giessibl, Franz J. (2023) Dynamic Friction Unraveled by Observing an Unexpected Intermediate State in Controlled Molecular Manipulation. PHYSICAL REVIEW LETTERS, 131 (14): 148001. ISSN 0031-9007, 1079-7114
Full text not available from this repository. (Request a copy)Abstract
The pervasive phenomenon of friction has been studied at the nanoscale via a controlled manipulation of single atoms and molecules with a metallic tip, which enabled a precise determination of the static friction force necessary to initiate motion. However, little is known about the atomic dynamics during manipulation. Here, we reveal the complete manipulation process of a CO molecule on a Cu(110) surface at low temperatures using a combination of noncontact atomic force microscopy and density functional theory simulations. We found that an intermediate state, inaccessible for the far-tip position, is enabled in the reaction pathway for the close-tip position, which is crucial to understanding the manipulation process, including dynamic friction. Our results show how friction forces can be controlled and optimized, facilitating new fundamental insights for tribology.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | LATERAL MANIPULATION; SINGLE ATOMS; ENERGY; FORCE; |
| 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: | 16 Mar 2024 12:01 |
| Last Modified: | 16 Mar 2024 12:01 |
| URI: | https://pred.uni-regensburg.de/id/eprint/60161 |
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