New proposed superconductor at room temperature
Date: Sunday, July 30, 2023 @ 18:06:57 GMT
From arxiv.org: Superconductor Pb10−xCux(PO4)6O showing levitation at room temperature and atmospheric pressure and mechanism
A LK-99 sample shows Tc above 126.85∘C (400 K). We analyze that the possibility of room-temperature superconductivity in this material is attributed to two factors: the first being the volume contraction resulting from an insulator-metal transition achieved by substituting Pb with Cu, and the second being on-site repulsive Coulomb interaction enhanced by the structural deformation in the one-dimensional(D) chain (Pb2-O1/2-Pb2 along the c-axis) structure owing to superconducting condensation at Tc. The mechanism of the room-temperature Tc is discussed by 1-D BR-BCS theory.