Reduced Hall carrier density in the overdoped strange metal regime of cuprate superconductors

Efforts to understand the microscopic origin of superconductivity in cuprates are dependent on knowledge normal state. The Hall number low-temperature, high-field limit nH(0) has a particular importance because, within conventional transport theory, it is simply related charge carriers, so its evolution with doping gives crucial information about nature transport. Here we report study coefficient single-layer Tl2Ba2CuO6+δ (Tl2201) and (Pb/La)-doped Bi2Sr2CuO6+δ (Bi2201), which shows how evolves overdoped—so-called strange metal—regime cuprates. We find that increases smoothly from p 1 + p, where holes doped into parent insulating state, over wide range doping. nH correlates emergence anomalous linear-in-temperature term low-temperature in-plane resistivity. results could suggest quasiparticle decoherence extends dopings well beyond pseudogap regime. A thallium- bismuth-based demonstrates smooth this quantity range.