| Autor: |
Weymouth AJ; University of Regensburg, 93053 Regensburg, Germany., Riegel E; University of Regensburg, 93053 Regensburg, Germany., Gretz O; University of Regensburg, 93053 Regensburg, Germany., Giessibl FJ; University of Regensburg, 93053 Regensburg, Germany. |
| Jazyk: |
angličtina |
| Zdroj: |
Physical review letters [Phys Rev Lett] 2020 May 15; Vol. 124 (19), pp. 196101. |
| DOI: |
10.1103/PhysRevLett.124.196101 |
| Abstrakt: |
Atomic force microscopy and scanning tunneling microscopy can image the internal structure of molecules adsorbed on surfaces. One reliable method is to terminate the tip with a nonreactive adsorbate, often a single CO molecule, and to collect data at a close distance where Pauli repulsion plays a strong role. Lateral force microscopy, in which the tip oscillates laterally, probes similar interactions but has the unique ability to pull the CO over a chemical bond, load it as a torsional spring, and release it as it snaps over with each oscillation cycle. This produces measurable energy dissipation. The dissipation has a characteristic decay length in the vertical direction of 4 pm, which is 13 times smaller than the decay length in typical STM or AFM experiments. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
|
