Vanishing nematic order beyond the pseudogap phase in overdoped cuprate superconductors

In the last decade, rotational and translational symmetry-breaking phases -- electronic nematicity and density wave order -- have been established as generic and distinct features in the cuprate phase diagram. However, their relationship to the pseudogap phase has remained unclear. In this study, we employ resonant x-ray scattering in the cuprate high-temperature superconductor La$_{1.6-x}$Nd$_{0.4}$Sr$_{x}$CuO$_{4}$ (Nd-LSCO) to probe the relationship between electronic nematicity of the Cu 3$d$ orbitals and hole doping. We find evidence for a considerable decrease in electronic nematicity in the vicinity of the pseudogap quantum critical point, $p^{*}$, either by raising temperature through the pseudogap onset temperature $T^{*}$ or increasing doping through $p^{*}$. These results establish a link between electronic nematicity, the pseudogap and its associated quantum critical point in overdoped cuprates.