Recently, Prof. Jian Wang’s group at International Center of Quantum Materials, School of Physics, Peking University, in collaboration with Prof. Ziqiang Wang at Boston College and Prof. Yi Liu at Renmin University of China, observed high-temperature field-free superconducting diode effect in Bi2Sr2CaCu2O8+δ (BSCCO) flake devices with the working temperature up to 72 K (around liquid nitrogen...
