1. High-temperature superconductors
1.1 Properties of superconductors
A superconductor is a material that conducts electric current without resistance below a certain "critical" temperature (T c ). Unlike ordinary metals, which are subject to the Joule effect, there is no dissipation of energy when a direct current flows through a superconductor: it is a perfect conductor, and its electrical resistance is zero. When cooled to below T c in the presence of a magnetic field, the latter is expelled from the material. It is a perfect diamagnetic material, and magnetic induction B is zero in its volume. Perfect conduction and diamagnetism are therefore the two generic properties of a superconductor, which manifest themselves when it...
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High-temperature superconductors
Superconductivity
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- (1) - - https://commons.wikipedia.org/wikiFile :Timeline_of_Superconductivity_from_1900_to_2015.svg . In : (2021).
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