Published: 14 October 2020
Room-temperature superconductivity in a carbonaceous sulfur
Elliot Snider, Nathan Dasenbrock-Gammon, Raymond McBride, Mathew Debessai, Hiranya
Vindana, Kevin Vencatasamy, Keith V. Lawler, Ashkan Salamat & Ranga P. Dias
Nature 586, 373–377(2020)
One of the long-standing challenges in experimental physics is the observation of room-temperature superconductivity1’2. Recently, high-temperature conventional superconductivity in hydrogen-rich materials has been reported in several systems under high pressure . . . Here we report superconductivity in a photochemically transformed carbonaceous sulfur hydride system, starting from elemental precursors, with a maximum superconducting transition temperature of 287.7 +/- 1.2 kelvin (about 15 degrees Celsius) achieved at 267 +/- 10 gigapascals. The superconducting state is observed over a broad pressure range in the diamond anvil cell, from 140 to 275 gigapascals, with a sharp upturn in transition temperature above 220 gigapascals . . .
Quite an achievement, but of course not anywhere near room temp superconducting generators or transmission lines or magnets. END