Electrostatic ordering of the lanthanum endoatom in La@C 82 adsorbed on metal surfaces

C. Ton-That; M. E. Welland; J. A. Larsson; J. C. Greer; A. G. Shard; V. R. Dhanak; A. Taninaka; H. Shinohara

doi:10.1103/PhysRevB.71.045419

Electrostatic ordering of the lanthanum endoatom in La@C ₈₂ adsorbed on metal surfaces

C. Ton-That, M. E. Welland, J. A. Larsson, J. C. Greer, A. G. Shard, V. R. Dhanak, A. Taninaka, H. Shinohara

Research output: Journal Publication › Article › peer-review

14 Citations (Scopus)

Abstract

An investigation of the dynamic behavior of the endohedral La atom in La@C ₈₂ adsorbed on Ag(111) or Cu(111) using the normal-incidence x-ray standing wavefield (NIXSW) technique is presented. For the surface-normal (111) reflection, NIXSW demonstrates different La absorption profiles between the La@C ₈₂ monolayer and multilayer. Analysis of the profiles reveals significant La ordering in the monolayer; the degree of ordering increases as the film is cooled. First-principles calculations provide a description of the endohedral metal atom-cage bonding and the fullerene-surface interaction. Combined, these effects give rise to preferential binding sites for the endoatom resulting from electrostatic interactions within the adsorbed fullerene.

Original language	English
Article number	045419
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	71
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevB.71.045419
Publication status	Published - Jan 2005
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.71.045419

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title = "Electrostatic ordering of the lanthanum endoatom in La@C 82 adsorbed on metal surfaces",

abstract = "An investigation of the dynamic behavior of the endohedral La atom in La@C 82 adsorbed on Ag(111) or Cu(111) using the normal-incidence x-ray standing wavefield (NIXSW) technique is presented. For the surface-normal (111) reflection, NIXSW demonstrates different La absorption profiles between the La@C 82 monolayer and multilayer. Analysis of the profiles reveals significant La ordering in the monolayer; the degree of ordering increases as the film is cooled. First-principles calculations provide a description of the endohedral metal atom-cage bonding and the fullerene-surface interaction. Combined, these effects give rise to preferential binding sites for the endoatom resulting from electrostatic interactions within the adsorbed fullerene.",

author = "C. Ton-That and Welland, {M. E.} and Larsson, {J. A.} and Greer, {J. C.} and Shard, {A. G.} and Dhanak, {V. R.} and A. Taninaka and H. Shinohara",

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doi = "10.1103/PhysRevB.71.045419",

language = "English",

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T1 - Electrostatic ordering of the lanthanum endoatom in La@C 82 adsorbed on metal surfaces

AU - Ton-That, C.

AU - Welland, M. E.

AU - Larsson, J. A.

AU - Greer, J. C.

AU - Shard, A. G.

AU - Dhanak, V. R.

AU - Taninaka, A.

AU - Shinohara, H.

PY - 2005/1

Y1 - 2005/1

N2 - An investigation of the dynamic behavior of the endohedral La atom in La@C 82 adsorbed on Ag(111) or Cu(111) using the normal-incidence x-ray standing wavefield (NIXSW) technique is presented. For the surface-normal (111) reflection, NIXSW demonstrates different La absorption profiles between the La@C 82 monolayer and multilayer. Analysis of the profiles reveals significant La ordering in the monolayer; the degree of ordering increases as the film is cooled. First-principles calculations provide a description of the endohedral metal atom-cage bonding and the fullerene-surface interaction. Combined, these effects give rise to preferential binding sites for the endoatom resulting from electrostatic interactions within the adsorbed fullerene.

AB - An investigation of the dynamic behavior of the endohedral La atom in La@C 82 adsorbed on Ag(111) or Cu(111) using the normal-incidence x-ray standing wavefield (NIXSW) technique is presented. For the surface-normal (111) reflection, NIXSW demonstrates different La absorption profiles between the La@C 82 monolayer and multilayer. Analysis of the profiles reveals significant La ordering in the monolayer; the degree of ordering increases as the film is cooled. First-principles calculations provide a description of the endohedral metal atom-cage bonding and the fullerene-surface interaction. Combined, these effects give rise to preferential binding sites for the endoatom resulting from electrostatic interactions within the adsorbed fullerene.

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Electrostatic ordering of the lanthanum endoatom in La@C ₈₂ adsorbed on metal surfaces

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