Raman studies of alkali-metal doped A sub x C sub 60 films (A = Na, K, Rb, and Cs; x = 0, 3, and 6)
- AT and T Bell Labs., Murray Hill, NJ (United States)
The room temperature Raman spectra of the intramolecular modes between 100 cm{sup {minus}1} and 2,000 cm{sup {minus}1} are reported for alkali-metal doped A{sub x}C{sub 60} films. For A = K, Rb, and Cs, phase separation is observed with the spectra of C{sub 60}, K{sub 3}C{sub 60}, K{sub 6}C{sub 60}, Rb{sub 3}C{sub 60}, Rb{sub 6}C{sub 60}, and Cs{sub 6}C{sub 60} phases reported. The x = 3 phases show only three Raman active modes: two of A{sub g} symmetry and only the lowest frequency H{sub g} mode. The other H{sub g} modes regain intensity in the x = 6 films, with several mode splittings observed. For A = Na, such phase separation is not clearly observed, and reduced mode shifts are interpreted as due to incomplete charge transfer in these films.
- OSTI ID:
- 7305994
- Journal Information:
- Science (Washington, D.C.); (United States), Journal Name: Science (Washington, D.C.); (United States) Vol. 254:5038; ISSN SCIEA; ISSN 0036-8075
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360602* -- Other Materials-- Structure & Phase Studies
ALKALI METAL COMPOUNDS
CARBON
CESIUM COMPOUNDS
DATA
ELEMENTS
EXPERIMENTAL DATA
FULLERENES
INFORMATION
LASER SPECTROSCOPY
NONMETALS
NUMERICAL DATA
PHASE STUDIES
POTASSIUM COMPOUNDS
RAMAN SPECTRA
RAMAN SPECTROSCOPY
RUBIDIUM COMPOUNDS
SODIUM COMPOUNDS
SPECTRA
SPECTROSCOPY
SUPERCONDUCTORS