Observation of Room Temperature Superconductivity in Hydride at Near Ambient Pressure

Superconductivity, one of most profound phenomenon in nature. However, this elusive quantum state has yet to revolutionize the world due to the low temperatures required. Consequently, ambient conditions superconductivity has become one of the most sought after goals of science since Kamerlingh Onnes’ first observation of superconductivity in elemental mercury at 4.2 kelvin over a century ago. Over the last decade, high pressure compression have dominated the search for high temperature superconductivity. Leading the way has been the “chemical precompression” of hydrogen dominant alloys demonstrating critical superconducting transition temperatures (T_c) approaching the freezing point of water in the rare earth hydrides LaH₁₀ and YH₉ at megabar pressures. Our discovery of room temperature superconductivity in a carbonaceous sulfur hydride highlighted that ternary or greater systems are likely the key to higher T_c’s and ambient conditions superconductivity. Here, we report a recent devolopmemts of new materials that exhibits superconductivity at near ambient conditions. These compounds were synthesized under high pressure-temperature conditions, and then after full recoverability its materials and superconducting properties are examined along compression pathways. With these material, the dawn of ambient superconductivity and applied technologies has arrived with a direct path now open for tailoring extreme science hydrides to “materials by design”.