Copper-oxide (CuO2) superconductors, such as Bi2Sr2CaCu2O8+ (Bi2212), have unusually high critical temperatures. Optical reflectivity measurements of Bi2212 have shown that it exhibits strong ...
"We've considered how the rising CO 2 levels will initially boost crop growth through the 'CO 2 fertilization effect,' but once temperatures exceed a critical threshold the heat stress will reduce ...