Rustem Bolat, Jose M Guevara, Philipp Leinen, Marvin Knol, Hadi H Arefi, Michael Maiworm, Rolf Findeisen, Ruslan Temirov, Oliver T Hofmann, Reinhard J Maurer, F Stefan Tautz, Christian Wagner
The discrete and charge-separated nature of matter - electrons and nuclei - results in local electrostatic fields that are ubiquitous in nanoscale structures and relevant in catalysis, nanoelectronics and quantum nanoscience. Surface-averaging techniques provide only limited experimental access to these potentials, which are determined by the shape, material, and environment of the nanostructure. Here, we image the potential over adatoms, chains, and clusters of Ag and Au atoms assembled on Ag(111) and quantify their surface dipole moments...
March 13, 2024: Nature Communications