Figure 2 | Scientific Reports

Figure 2

From: A new way to synthesize superconducting metal-intercalated C60 and FeSe

Figure 2

Superconductivity in electrochemically K-intercalated C60.

(a) Temperature dependence of magnetic susceptibility for KxC60 precursor (pre-KC60), electrochemically intercalated KxC60 (EC−KC60) and (b) electrochemically intercalated C60 (EC−C60). (c) Bias voltage dependence of magnetic susceptibility for EC−C60 for a reaction time of 24 hours. The inset shows the bias voltage dependence of the superconducting volume fraction. In (a–c), the bias voltage was switched off during the M/H measurements. (d) Raman spectra for C60 and electrochemically intercalated EC−C60.

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