TY - JOUR
T1 - STM study on one-dimensional cluster formation processes of Y@C82 and C60 molecules
AU - Hasegawa, Y.
AU - Ling, Y.
AU - Yamazaki, S.
AU - Hashizume, T.
AU - Shinohara, H.
AU - Sakurai, T.
N1 - Funding Information:
We acknowledge generous support by the New Frontier Program Grand-in-Aid for Scientific Research (No. 07NP0301) funded by the Ministry of Education, Science and Culture.
PY - 1996/10/30
Y1 - 1996/10/30
N2 - Using scanning tunneling microscopy (STM), we have studied cluster formation processes of fullerene molecules adsorbed on the Cu(111) 1 × 1 surface. We used two endohedral metallofullerenes; Y@C82 and Gd@C82, and pristine C60. All adsorbed molecules are observed at step edges of the surface, and thus their processes can be treated with a model of one-dimensional cluster formation. When small amounts of molecules are deposited on the surface, we found that the dimer is most abundant among the clusters of Y@C82 while monomers are dominant in the cases of Gd@C82 and C60. Since Y@C82 has an electronic spin while the others do not, we speculated that the preferred dimer formation of Y@C82 is owing to an interaction of the spin. Interaction energies among fullerene molecules were estimated based on a statistical analysis of the STM data.
AB - Using scanning tunneling microscopy (STM), we have studied cluster formation processes of fullerene molecules adsorbed on the Cu(111) 1 × 1 surface. We used two endohedral metallofullerenes; Y@C82 and Gd@C82, and pristine C60. All adsorbed molecules are observed at step edges of the surface, and thus their processes can be treated with a model of one-dimensional cluster formation. When small amounts of molecules are deposited on the surface, we found that the dimer is most abundant among the clusters of Y@C82 while monomers are dominant in the cases of Gd@C82 and C60. Since Y@C82 has an electronic spin while the others do not, we speculated that the preferred dimer formation of Y@C82 is owing to an interaction of the spin. Interaction energies among fullerene molecules were estimated based on a statistical analysis of the STM data.
KW - Cluster formation
KW - Metallofullerenes
KW - Scanning tunneling microscopy
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U2 - 10.1016/S0921-5093(96)10356-7
DO - 10.1016/S0921-5093(96)10356-7
M3 - Article
AN - SCOPUS:0030259428
VL - 217-218
SP - 23
EP - 26
JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
SN - 0921-5093
ER -