Dy@C82 and Dy@C60 adsorbed on Si(111)−(7×7) surface are investigated by scanning tunneling microscopy (STM) at 295 K. The Dy@C82 molecules in the first layer are adsorbed on the Si(111)−(7×7) surface without formation of islands and nucleation, and the internal structure of the Dy@C82 molecule is first observed on the surface at 295 K. The average heights of the Dy@C82 molecules in the first and second layers are estimated to be 7.2 and 10.8Å, respectively, by STM. These results suggest strong interactions between the Si atoms and the Dy@C82 molecules in the first layer. The STM image reveals that the Dy@C60 molecule is nearly spherical, showing that the metal endohedral C60 possesses a cage-form structure.
|Journal||Physical Review B - Condensed Matter and Materials Physics|
|Publication status||Published - Jan 28 2004|
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics