Far-infrared transmission of superconducting KxC60 films
Far-infrared transmission measurements have been performed on normal and superconducting KxC60 films on Si substrates. The films are prepared by thermal sublimation followed by in situ doping in a vacuum-tight cell. The observed peak in the ratio of the superconducting to normal transmittance near 50 cm-1 is consistent with a distribution of superconducting gaps in the range (2--5)kTc.
FitzGerald, S.A., S.G. Kaplan, A. Rosenberg, A.J. Sievers, and R.A.S. McMordie. 1992. "Far-infrared transmission of superconducting KxC60 films." Physical Review B 45(17): 10165-10168.
American Physical Society
Physical Review B
Physics and Astronomy