TY - JOUR
T1 - Well-shielded cerium atoms
T2 - Electronic structure of adsorbed Ce@C 82 on Si surfaces
AU - Schulte, K.
AU - Wang, L.
AU - Moriarty, P. J.
AU - Purton, J.
AU - Patel, S.
AU - Shinohara, H.
AU - Kanai, M.
AU - Dennis, T. J.S.
PY - 2005/3/15
Y1 - 2005/3/15
N2 - The interaction of Ce@C 82 with clean and silver-terminated Si(111) surfaces has been studied with synchrotron-radiation photoemission spectroscopy and near-edge x-ray absorption fine-structure (NEXAFS) spectroscopy. Use of an Ag/Si(111)-(√3×√3)R30° surface as an initial substrate enables the molecule-substrate interaction to be progressively strengthened through controlled annealing. Although strong covalent bonding and distortion of the fullerene cage are observed following the removal of the Ag-induced reconstruction (above 550°C), the cerium atom's valence and overall electronic structure, as probed by Ce 3d NEXAFS, appear to be remarkably unaffected.
AB - The interaction of Ce@C 82 with clean and silver-terminated Si(111) surfaces has been studied with synchrotron-radiation photoemission spectroscopy and near-edge x-ray absorption fine-structure (NEXAFS) spectroscopy. Use of an Ag/Si(111)-(√3×√3)R30° surface as an initial substrate enables the molecule-substrate interaction to be progressively strengthened through controlled annealing. Although strong covalent bonding and distortion of the fullerene cage are observed following the removal of the Ag-induced reconstruction (above 550°C), the cerium atom's valence and overall electronic structure, as probed by Ce 3d NEXAFS, appear to be remarkably unaffected.
UR - http://www.scopus.com/inward/record.url?scp=20144361982&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.71.115437
DO - 10.1103/PhysRevB.71.115437
M3 - Article
AN - SCOPUS:20144361982
SN - 1098-0121
VL - 71
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 11
M1 - 115437
ER -