Moiré Structure and Yu-Shiba-Rusinov States of ClGa-Phthalocyanine Bilayers on Pb(100)
Year: 2026
Type: article
Abstract: High Resolution Image Download MS PowerPoint Slide Chlorogallium phthalocyanine (ClGaPc) has been studied on superconducting Pb(100) using scanning tunneling microscopy and spectroscopy. The molecules assemble into well ordered bilayer islands with second-layer molecules occupying hollow sites of the first molecular layer. Topographs exhibit a moiré pattern that reflects the different adsorption sites of the first layer molecules on the Pb substrate. The lowest unoccupied molecular orbital (LUMO) resolved above the bilayer straddles the Fermi level and gives rise to Yu-Shiba-Rusinov (YSR) states. The moiré pattern breaks the degeneracy of the LUMO and affects the YSR states. Using the sharp YSR peaks for resonance enhancement, 18 vibrational excitations are resolved. Their energies appear to be independent of the moiré pattern.
Authors: Niklas Ide, Arnab Banerjee, Alexander Weismann, Richard Berndt
Institution: Christian-Albrechts-Universität zu Kiel
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,500
OpenAlex ID: W7162561295