Interaction of yttrium atoms with a C60 fullerite film

•Adsorption of Y atoms onto C60 fullerite film was studied using STM observations.•Adsorbed Y atoms avoid clustering.•Y atoms are incorporated into the octahedral voids of the fullerite crystal.•Incorporated Y atom transfers a charge to the neighboring three surface C60 fullerenes. [Display omitted]...

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Bibliographic Details
Published in:Surface science 2020-12, Vol.702, p.121716, Article 121716
Main Authors: Mararov, V.V., Olyanich, D.A., Utas, T.V., Zotov, A.V., Saranin, A.A.
Format: Article
Language:English
Subjects:
Atom–solid interactions
Buckminsterfullerene
C60 fullerite film
Charge transfer
Clustering
Fullerenes
Scanning tunneling microscopy
Silicon
Yttrium
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Summary:•Adsorption of Y atoms onto C60 fullerite film was studied using STM observations.•Adsorbed Y atoms avoid clustering.•Y atoms are incorporated into the octahedral voids of the fullerite crystal.•Incorporated Y atom transfers a charge to the neighboring three surface C60 fullerenes. [Display omitted] Using scanning tunneling microscopy (STM) observation, interaction of yttrium (Y) atoms with the C60 fullerite films has been studied. It has been found that adsorbed Y atoms avoid clustering and are incorporated in the C60 film as individual atoms occupying the octahedral voids of the fullerite crystal. As a result of a charge transfer from the Y atom, the three neighboring surface fullerenes look more bright in the filled-state STM images. Yttrium atoms are tightly bound in their sites and neither move laterally nor float to the film surface upon subsequent overgrowth of C60 layers.
ISSN:0039-6028
1879-2758
DOI:10.1016/j.susc.2020.121716