Prominent Josephson tunneling between twisted single copper oxide planes of Bi₂Sr_2-xLa_xCuO_6+y.

ABSTRACT: Josephson tunneling in twisted cuprate junctions provides a litmus test for the pairing symmetry, which is fundamental for understanding the microscopic mechanism of high temperature superconductivity. This issue is rekindled by experimental advances in van der Waals stacking and the proposal of an emergent d+id-wave. So far, all experiments have been carried out on Bi₂Sr₂CaCu₂O_8+x (Bi-2212) with double CuO₂ planes but show controversial results. Here, we investigate junctions made of Bi₂Sr_2-xLa_xCuO_6+y (Bi-2201) with single CuO₂ planes. Our on-site cold stacking technique ensures uncompromised crystalline quality and stoichiometry at the interface. Junctions with carefully calibrat

SUBMITTER: Wang H 

PROVIDER: S-EPMC10457331 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature