First measured critical temperature in a ceramic superconductor
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In 1986, it was discovered that some cuprate-perovskite ceramic materials have a critical temperature above 90 K(−183 °C). Such a high transition temperature is theoretically impossible for a conventional superconductor, leading the materials to be termed high-temperature superconductors.
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In 1986
Explanation:
Superconductivity is a set of physical properties observed in certain materials where electrical resistance vanishes and magnetic flux fields are expelled from the material. Any material exhibiting these properties is a superconductor.
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