| Autor: |
Ethan Chi Ho Wen, Peter H. Jacobse, Jingwei Jiang, Ziyi Wang, Ryan D. McCurdy, Steven G. Louie, Michael F. Crommie, Felix R. Fischer |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
Journal of the American Chemical Society. 144(30) |
| ISSN: |
1520-5126 |
| Popis: |
The design of a spin imbalance within the crystallographic unit cell of bottom-up engineered 1D graphene nanoribbons (GNRs) gives rise to nonzero magnetic moments within each cell. Here, we demonstrate the bottom-up assembly and spectroscopic characterization of a one-dimensional Kondo spin chain formed by a chevron-type GNR (cGNR) physisorbed on Au(111). Substitutional nitrogen core doping introduces a pair of low-lying occupied states per monomer within the semiconducting gap of cGNRs. Charging resulting from the interaction with the gold substrate quenches one electronic state for each monomer, leaving behind a 1D chain of radical cations commensurate with the unit cell of the ribbon. Scanning tunneling microscopy (STM) and spectroscopy (STS) reveal the signature of a Kondo resonance emerging from the interaction of |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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