Exploring the bounds of room-temperature superconductivity

Science Daily  March 9, 2022
Several reports of high superconducting transition temperature (Tc) up to 287 K in hydrides under pressure of up to 267 GPa have appeared. The ultrahigh pressure needed to create the high-temperature superconductivity (HTS) in hydrides has hampered the detailed study of the high-pressure-induced high-Tc superconductivity state, as well as any potential applications. Researchers at the University of Houston developed a pressure-quench process (PQP) and demonstrated it successfully in stabilizing at ambient the high-pressure-induced superconducting phases and other phases in the non-superconducting element Sb, the binary superconducting compound FeSe, and the non-superconducting compound Cu-doped FeSe. According to the researchers the PQP may be adapted for hydrides with Tc approaching room temperature for science and technology. They discuss their results and opportunities and challenges… read more. TECHNICAL ARTICLE