ISSN:
1432-0630
Keywords:
PACS: 61.46+w; 71.20.Tx; 71.20.-b
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
\chem{Rb_1C_{60}} and dimerised \chem{C_{59}N} using electron energy-loss spectroscopy in transmission. From the C1s excitation spectra a reduced density of \pi^\star states is observed for polymerized \chem{Rb_1C_{60}} . This is in contrast to \chem{(\chem{C_{59}N})_2} and can be explained by the different type of \squt{doping} and by the different bonding between the fullerene molecules in the two systems. Additional information about the optical properties was obtained from the low energy loss function. Using a Kramers-Kronig analysis, the dielectric function, ( \epsilon ), and the optical conductivity, ( \sigma ), have been derived. \epsilon(0) and the onset of the spectral weight have been compared between the polymer, the dimer and \chem{C_{60}} . This onset of spectral weight is found to be at \valunit*{1.2}{\eV} and \valunit{1.4}{\eV} for o- \chem{Rb_1C_{60}} and for \chem{(\chem{C_{59}N})_2} , respectively.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s003390050482
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