The compound conducts electricity without resistance up to 15° C, but only under high pressure. Dias and colleagues formed the superconductor by squeezing carbon, hydrogen and sulfur between the tips of two diamonds and hitting the material with laser light to induce chemical reactions. At a pressure about 2.6 million times that of Earth’s atmosphere, and temperatures below about 15° C, the electrical resistance vanished. https://www.sciencenews.org/article/physics-first-room-temperature-superconductor-discovery
