Less than two years ago the science world was shocked by the discovery of a material capable of room-temperature superconductivity. Now, a team of University of Nevada Las Vegas (UNLV) physicists has upped the ante once again by reproducing the feat at the lowest pressure ever recorded. To be cle
A team of physicists from UNLV’s Nevada Extreme Conditions Lab used a diamond anvil cell, a research device similar to the one pictured, in their research to lower the pressure needed to observe a material capable of room-temperature superconductivity. Credit: Image courtesy of NEXCL
by UNLV physicist Ashkan Salamat and colleague Ranga Dias, a physicist with the University of Rochester. To achieve the feat, the scientists chemically synthesized a mix of carbon, sulfur, and hydrogen first into a metallic state, and then even further into a room-temperature superconducting state using extremely high pressure – 267 gigapascals – conditions you’d only find in nature near the center of the Earth.
Though the pressures are still very high – about a thousand times higher than you’d experience at the bottom of the Pacific Ocean’s Mariana Trench – they continue to race toward a goal of near-zero. It’s a race that’s gaining steam exponentially at UNLV as researchers gain a better understanding of the chemical relationship between the carbon, sulfur, and hydrogen that make up the material.
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