Superconducting state in M3C60: Strong vs. weak coupling |
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Authors: | Vladimir Z Kresin |
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Affiliation: | (1) Lawrence Berkeley Laboratory, University of California, 94720 Berkeley, California |
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Abstract: | The superconducting state in the doped fullerenes is due to strong coupling (e.g.,![lambda](/content/w7m7377221644kj7/xxlarge955.gif) 2.1 for Rb3C60) to low-frequency intramolecular modes ![OHgr](/content/w7m7377221644kj7/xxlarge937.gif) ![cong](/content/w7m7377221644kj7/xxlarge8773.gif)
L
250 cm–1 (![OHgr](/content/w7m7377221644kj7/xxlarge937.gif) ![equiv](/content/w7m7377221644kj7/xxlarge8801.gif) ![lang](/content/w7m7377221644kj7/xxlarge9001.gif) 2 1/2). The analysis is based on an equation describingT
c
for any strength of the coupling and on recent isotope effect and NMR data. |
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Keywords: | Superconductivity fullerenes coupling strength |
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