Finally, superconductivity at room temperature! – AlKhaleej Today

At high pressure, hydrogen turns metallic. The addition of sulfur atoms can then transform it into a superconducting material. We already knew this but what is new is that researchers have now succeeded in obtaining this state at almost room temperature, 15 ° C, by also adding carbon to it. The only downside for this unprecedented success with a superconductor, carbonaceous hydrogen sulfide must be maintained at a pressure of several million atmospheres.
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