STM study of one-dimensional cluster formation of fullerenes: Dimerization of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Y</mml:mi><mml:mi mathvariant="normal">@</mml:mi><mml:mi mathvariant="normal">C</mml:mi></mml:mrow><mml:mrow><mml:mn>82</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>

Hasegawa, Yukio; Ling, Yongshun; Yamazaki, Shiro; Hashizume, Tomihiro; Shinohara, Hisanori; Sakai, Akira; Pickering, H. W.; Sakurai, Takeshi

doi:10.1103/physrevb.56.6470

Cited by 31 publications

(31 citation statements)

References 20 publications

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“…6 The nucleation behavior of the Lu-C 82 molecules on the C 60 film is also consistent with that of the Y-C 82 and Gd-C 82 molecules on the Cu͑111͒ surface, 15 where monomers, dimers, and trimers of Y-C 82 and Gd-C 82 molecules aggregate on the terrace edges of Cu͑111͒. Tb-C82 molecule adsorption on the C 60 surface showed a similar tendency.…”

Section: Resultssupporting

confidence: 71%

Scanning tunneling microscopy of endohedral metallofullerene Lu–C82 on C60 film

Shi¹,

Wang²,

Huang³

et al. 2002

Journal of Vacuum Science &Amp; Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena

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Articles you may be interested inThermal stability of surface freezing films in Ga-based alloys: An x-ray photoelectron spectroscopy and scanning tunneling microscopy study Wurtzite GaN surface structures studied by scanning tunneling microscopy and reflection high energy electron diffraction J.Endohedral metallofullerene Lu-C 82 molecules adsorbed on C 60 film have been investigated by an ultra-high-vacuum scanning tunneling microscopy. The C 60 film was obtained by depositing 2-3 ML of C 60 molecules on a highly oriented pyrolytic graphite surface. The as-deposited Lu-C 82 molecules were observed to form various structures on the C 60 film. The nucleation behavior of Lu-C 82 was compared with that of Nd-C 82 and Tb-C 82 on the C 60 film. These structures were explained based on the interactions of Lu-C 82 -C 60 , Lu-C 82 -Lu-C 82 , and Lu-C 82 scanning tunneling microscopy tip.

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Section: Resultssupporting

confidence: 71%

Scanning tunneling microscopy of endohedral metallofullerene Lu–C82 on C60 film

Shi¹,

Wang²,

Huang³

et al. 2002

Journal of Vacuum Science &Amp; Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena

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“…Many metal-containing endohedral fullerenes such as Tb@C 82 , 42 Nd@C 82 , 43 and Y@C 82 44 have a tendency to form dimers especially in the solid state. The dimerization has been explained by intermolecular interactions originating from a permanent dipole moment 43 at the fullerene cage.…”

Section: Fullerene Dimermentioning

confidence: 99%

Superatom orbitals ofSc3N@C80and their intermolecular hybridization onCu(
Huang
¹
,
Zhao
²
,
Feng
³

et al. 2010
Phys. Rev. B
35
2
32
1
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We investigate the electronic structure of an endohedral fullerene, Sc 3 N@C 80 , chemisorbed on Cu͑110͒-͑2 ϫ 1͒-O surface by scanning tunneling microscopy and density-functional theory. Scanning tunneling microscopy and spectroscopy identify a series of delocalized atomlike superatom molecular orbitals ͑SA-MOs͒ in the Sc 3 N@C 80 and its aggregates. By contrast to C 60 , the encapsulated Sc 3 N cluster in Sc 3 N@C 80 distorts the nearly-spherical central potential of the carbon cage, imparting an asymmetric spatial distribution to the SAMOs. When Sc 3 N@C 80 molecules form dimers and trimers, however, the strong intermolecular hybridization results in highly symmetric hybridized SAMOs with clear bonding and antibonding characteristics. The electronic-structure calculations on Sc 3 N@C 80 and its aggregates confirm the existence of SAMOs and reproduce their hybridization as observed in the experiment.

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“…It is not surprising that the NIXSW measurements from monolayer and submonolayer films yielded the same results since endofullerene molecules are mobile on Cu͑111͒ and form single-layer islands at low coverages. 8 Cooling the monolayers to a temperature of 170 K increases the coherent fraction of the La atoms with respect to the ͑111͒ plane, and thus reduces the height range. This is consistent with a reduction in thermally excited vibrations of the atoms according to Debye-Waller behavior.…”

Section: ͑3͒mentioning

confidence: 99%

“…Y@C 82 molecules have been imaged on Cu͑111͒ with STM and shown to preferably adsorb at substrate terrace edges, indicating that isolated molecules have significant mobility. 8,9 A common feature of fullerene absorption on noble-metal surfaces is the ionic character of the bonding, which arises from charge transfer from the substrate to the fullerene. This leads to the expectation that the electronic and structural properties of endofullerenes in monolayer films will be different from bulk properties.…”

Section: Introductionmentioning

confidence: 99%

Orientation and constraints of endohedral lanthanum inLa@C82molecules adsorbed on Cu(111)

et al. 2003

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The orientation of the endohedral La atom in La@C 82 adsorbed on Cu͑111͒ has been determined using the normal-incidence x-ray standing wave ͑NIXSW͒ technique. The NIXSW measurements were carried out using both the normal ͗111͘ and 70.5°off-normal ͗1 11͘ Bragg reflections. The La ͗1 11͘ profiles of the La@C 82 monolayer and submonolayers are found to be similar to the ͗111͘ profile of the multilayer, while the ͗111͘ profiles of the monolayer and submonolayers are distinctly different with much lower peak height. This indicates significant ordering of the La atoms in the monolayers with respect to height above the Cu surface but little lateral ordering. The results of curve fits to the monolayer profiles show that the La atoms are regionally located at 1.62 ͑Ϯ0.77͒ Å above an extended scattering plane from the crystal. Cooling the monolayers to a temperature of 170 K increases ordering of the La atoms with respect to height above the surface. The NIXSW results demonstrate that the endohedral molecules adopt a restricted orientation upon adsorbing on the surface and the La atom resides on either the upper or lower half of the cage. Theoretical calculations show that the most stable La positions are located in the top half of the fullerene cage, which supports the La upper configuration. The results are explained in terms of electrostatic interactions between the endohedral atom, the fullerene cage, and the substrate.

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STM study of one-dimensional cluster formation of fullerenes: Dimerization ofY@C82

Cited by 31 publications

References 20 publications

Scanning tunneling microscopy of endohedral metallofullerene Lu–C82 on C60 film

Scanning tunneling microscopy of endohedral metallofullerene Lu–C82 on C60 film

Superatom orbitals ofSc3N@C80and their intermolecular hybridization onCu(
Huang
¹
,
Zhao
²
,
Feng
³

et al. 2010
Phys. Rev. B
35
2
32
1
View full text Add to dashboard Cite

Orientation and constraints of endohedral lanthanum inLa@C82molecules adsorbed on Cu(111)

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STM study of one-dimensional cluster formation of fullerenes: Dimerization ofY@C82

Cited by 31 publications

References 20 publications

Scanning tunneling microscopy of endohedral metallofullerene Lu–C82 on C60 film

Scanning tunneling microscopy of endohedral metallofullerene Lu–C82 on C60 film

Superatom orbitals ofSc3N@C80and their intermolecular hybridization onCu(Huang1, Zhao2, Feng3 et al. 2010Phys. Rev. B352321View full textAdd to dashboardCite

Orientation and constraints of endohedral lanthanum inLa@C82molecules adsorbed on Cu(111)

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Product

Resources

About

Superatom orbitals ofSc3N@C80and their intermolecular hybridization onCu(
Huang
¹
,
Zhao
²
,
Feng
³

et al. 2010
Phys. Rev. B
35
2
32
1
View full text Add to dashboard Cite