期刊
PHYSICAL REVIEW B
卷 80, 期 8, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.80.081403
关键词
adsorbed layers; copper; dysprosium compounds; fullerenes; island structure; scanning tunnelling microscopy; X-ray diffraction; X-ray photoelectron spectra
资金
- Swiss National Science Foundation
- NCCR
The inter- and intramolecular ordering of the trimetallic nitride endohedral fullerene Dy3N@C-80 with icosahedral cage symmetry I-h on Cu(111) has been studied by scanning tunneling microscopy and synchrotron-based x-ray photoelectron diffraction (XPD). Dy3N@C-80 (I-h) is found to form ordered islands consisting of domains of equally oriented molecules. As for C-60 on the same substrate, the cage is facing with a hexagon toward the surface, which is however slightly tilted for C-80. The endohedral nitrogen atom remains at a position close to the geometrical center of the cage. Resonant XPD on the M-V edge shows that the encaged Dy3N unit takes well-defined orientations with respect to the C-80 cage and the Cu(111) substrate.
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