Experimental Search and Characterization of Icosahedral Clusters: A112X- (X=C, Ge, Sn, Pb)

Journal Article · Wed Mar 27 04:00:00 EST 2002 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PhysRevB.65.153404· OSTI ID:15005603

Li, Xi ^[1]; Wang, Lai-Sheng ^[2]

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1. Washington State University Tri-Cities
2. BATTELLE (PACIFIC NW LAB)

Photoelectron spectra of Al12X (X= C, Ge, Sn, Pb) were measured to probe the electronic structure of Al12X. These clusters, all possessing 40 valence electrons, were expected to be magic numbers with Ih-X{at}Al12 structures, closed electron shells, and large energy gaps. We showed that for X=Ge, Sn, and Pb that was indeed the case, although non-Ih isomers were also observed. The energy gaps of the three Ih-X@Al12 species range from 1.1 to 1.3 eV. The spectra of Al12C- were distinctly different from the other species, confirming that it does not possess an icosahedral structure.

• Research Organization: Pacific Northwest National Lab., Richland, WA (US), Environmental Molecular Sciences Lab. (US)
• Sponsoring Organization: US Department of Energy (US)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 15005603
• Journal Information: Physical Review. B, Condensed Matter and Materials Physics, Journal Name: Physical Review. B, Condensed Matter and Materials Physics Journal Issue: 15 Vol. 65
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ELECTRONIC STRUCTURE
ELECTRONS
ENERGY GAP
ENVIRONMENTAL MOLECULAR SCIENCES LABORATORY
NULL
ISOMERS
MAGIC NUCLEI
PROBES
SPECTRA
VALENCE