| Autor: |
Vranik, Radovan, Stetsovych, Vitalii, Feigl, Simon, Müllegger, Stefan |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Surface Science 700, 121676 (2020) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1016/j.susc.2020.121676 |
| Popis: |
Stable organic radicals serve as model systems for investigating metal-free magnetic phenomena at (sub)nanometer length scales. We have investigated at the single-molecule level the stable $\pi$-radical 2,2-diphenyl-1-picrylhydrazyl (DPPH) adsorbed at the elbow sites of the $22\times\sqrt{3}$ reconstructed Au(111) surface. Low-temperature scanning tunneling microscopy (STM) and -spectroscopy under ultrahigh vacuum conditions at 8~K reveal structural as well as frontier-orbital related electronic details of DPPH/Au(111). A Kondo-like spectroscopic signature indicates preservation of the unpaired electron spin state. |
| Databáze: |
arXiv |
| Externí odkaz: |
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