Superconductivity
Superconductivity
K. Kamaras, S.L. Herr, C.D. Porter, N. Tache, D.B. Tanner, "In a clean high-Tc superconductor you do not see the gap," Physical Review Letters, 64:84-87, 1990. Katalin Kamaras (University of Florida, Gainesville; now at the Institute for Solid State Physics, Budapest, Hungary): "This paper reported one of the first few measurements of perfect (100 percent) infrared reflectivity in a high-temperature superconductor (see also Physical Review Letters, 61:1313-16, 1988; Europhysics Letters, 8:679-