Abstract
Fullerence C60 exhibits a continuous and reversibleA g (2) mode softening from 1469 to 1459 cm−1, which is linear with laser power up to 21.9 kW/cm2 for C60 crystals under vacuum. Model calculations taking into account the temperature distribution that is induced by the Gaussian intensity profile of the laser beam reproduce the measured frequency shifts. A thermal conductivity of microcrystalline fullerene of 0.27(±0.03) W/mK is derived from this numerical analysis.
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References
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