The Environment-Dependent Behavior of the Blatter Radical at the Metal–Molecule Interface

• DOI: 10.1021/acs.nanolett.9b00275
• Publication Date: 2019-03-18T21:10:30Z
• Authors: Jonathan Z. Low; Gregor Kladnik; Laerte L. Patera; Sophia Sokolov; Giacomo Lovat; Elango Kumarasamy; Jascha Repp; Luis M. Campos; Dean Cvetko; Alberto Morgante; Latha Venkataraman
• Keywords: Interface (matter)

Stable organic radicals have potential applications for building spintronic devices. To fulfill this potential, the interface between and metal electrodes must be well characterized. Here, through a combined effort that includes synthesis, scanning tunneling microscopy, X-ray spectroscopy, single-molecule conductance measurements, we comprehensively probe electronic interaction gold benchtop stable radical—the Blatter radical. We find despite its open-shell character having half-filled orbital close to Fermi level, radical is on substrate under ultrahigh vacuum. observe Kondo resonance arising from spectroscopic signatures of orbitals. By contrast, in solution-based lost oxidation with charge transfer occurring molecule metal. Our experiments show stability states can very sensitive environment around molecule.