• noun the ability of some solids to conduct electric current with almost no internal resistance at very low temperatures
  • The flow of current with a complete, or nearly complete disappearance of all electrical resistance. Superconductive properties have been observed in many elements, alloys, compounds, and other material materials, such as ceramics, under the proper conditions. Under such circumstances, usually occurring at very low temperatures, such materials become perfect, or nearly perfect, conductors. The Bardeen-Cooper-Schrieffer theory provides an explanation for superconductivity occurring at cryogenic temperatures, but may not hold up for high-temperature, or room temperature superconductivity. In theory, perfect superconduction can continue indefinitely without decay. When superconductivity occurs at or above a given temperature, such as 77, 90, or 125 K, it is called high-temperature superconductivity, and when above a higher threshold, such as 250 or 300 K, it is called room-temperature superconductivity. Also called superconductive properties.
  • synonym superconductive properties

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