Impact of low-energy spin fluctuations on the strange metal in a cuprate superconductor

Strange metals exhibit unusual properties such as a resistivity that scales linearly with temperature. Physicists use magnetic fields as high as 86 T to explore the physics of strange metals in a cuprate superconductor. Close to the critical doping of the pseudogap p* = 0.19, they discover that temperature-linear resistivity exists down to the lowest temperature over an extended range of magnetic field between 60 T and 70 T or so, and disappears above. Indeed, above 70 T, a spin glass phase gradually appears and causes the end of strange metallicity.