Fullerides of alkaline-earth metals

Journal Article · Wed Apr 15 00:00:00 EDT 1992 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.45.8845· OSTI ID:7234622

Chen, Y; Stepniak, F; Weaver, J H ^[1]; Chibante, L P.F.; Smalley, R E ^[2]

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1. Department of Materials Science and Chemical Engineering, University of Minnesota, Minneapolis, Minnesota 55455 (United States)
2. Rice Quantum Institute and Departments of Chemistry and Physics, Rice University, Houston, Texas 77251 (United States)

Synchrotron radiation photoemission studies show that the mixing of Mg, Sr, and Ba with C{sub 60} yields metallic (Sr and Ba) and nonmetallic (Mg) fullerides. In all cases, fulleride formation leads to the occupation of hybrid bands near the Fermi level that are derived from C{sub 60} states and the {ital s} states of the alkaline-earth atoms. The nonmetallic character of Mg{sub {ital x}}C{sub 60} probably reflects electron correlation effects, and metallic Sr{sub {ital x}}C{sub 60} and Ba{sub {ital x}}C{sub 60} fullerides are candidates for superconductivity.

• OSTI ID: 7234622
• Journal Information: Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 45:15; ISSN PRBMD; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

665411* -- Basic Superconductivity Studies-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BREMSSTRAHLUNG
CARBON
CARBON COMPOUNDS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROMAGNETIC RADIATION
ELECTRONIC STRUCTURE
ELEMENTS
EMISSION
FULLERENES
MAGNESIUM COMPOUNDS
NONMETALS
PHOTOEMISSION
PHYSICAL PROPERTIES
RADIATIONS
SECONDARY EMISSION
STRONTIUM COMPOUNDS
SUPERCONDUCTIVITY
SYNCHROTRON RADIATION