Journal of Applied Physics · 1961 · 52 citations · 4 references
Natural SciencesElectrical EngineeringSemiconductor DevicesThin FilmsThin-film Materials
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Energy Gap in Superconductors Measured by Electron Tunneling
Physical Review Letters · 1960 · 762 citations
Direct Measurement of the Superconducting Energy Gap
J. Nicol, Sidney Shapiro, Paul H. Smith · Physical Review Letters · 1960 · 124 citations