….Whereas STM has been used to study dimers made of bare metal atoms adsorbed on a metal surface, similar studies with molecules are scarce despite their potential interest for applications. IPCMS researchers present an original method to create Mn-Phthalocyanine dimer (MnPc)2 complexes by on-surface assembly. They demonstrate that the dimer can be switched between an antiferromagnetic (AFM) and a ferromagnetic (FM) state upon a small conformational change controlled by STM manipulation. The two states of the molecular switch are easily identified spectroscopically by their Kondo resonance. Experimental results are fully supported by rigorous and exhaustive ab-initio calculations. These findings provide strong arguments for using magnetic dimers as bi-stable molecular switches and open up new research avenues in spintronics, logics and computing at the molecular scale.
This research was highlighted by the editor as the cover page of Advanced Physics Research Journal, Vol. 2, No1, Jan. 2023.
Read the article: Advanced Physics Research 2022. https://doi.org/10.1002/apxr.20220000