Document Detail


Structures, energetics, and dynamics of helium adsorbed on isolated fullerene ions.
MedLine Citation:
PMID:  22401228     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Helium adsorbed on C_{60}^{+} and C_{70}^{+} exhibits phenomena akin to helium on graphite. Mass spectra suggest that commensurate layers form when all carbon hexagons and pentagons are occupied by one He each, but that the solvation shell does not close until 60 He atoms are adsorbed on C_{60}^{+}, or 62 on C_{70}^{+}. Molecular dynamics simulations of C_{60}He_{n}^{+} at 4 K show that the commensurate phase is solid. Helium added to C_{60}He_{32}^{+} will displace some atoms from pentagonal sites, leading to coexistence of a registered layer of immobile atoms interlaced with a nonregistered layer of mobile atoms.
Authors:
Christian Leidlmair; Yang Wang; Peter Bartl; Harald Schöbel; Stephan Denifl; Michael Probst; Manuel Alcamí; Fernando Martín; Henning Zettergren; Klavs Hansen; Olof Echt; Paul Scheier
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Publication Detail:
Type:  Journal Article     Date:  2012-02-13
Journal Detail:
Title:  Physical review letters     Volume:  108     ISSN:  1079-7114     ISO Abbreviation:  Phys. Rev. Lett.     Publication Date:  2012 Feb 
Date Detail:
Created Date:  2012-03-09     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401141     Medline TA:  Phys Rev Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  076101     Citation Subset:  IM    
Affiliation:
Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Innsbruck, Austria.
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