Pressure-induced Lifshitz and quantum phase transitions in electron-doped cuprate superconductors.
We report observations of a pressure-induced Lifshitz transition coupled with a quantum phase transition in the electron-doped cuprate superconductor Pr0.87LaCe0.13CuO4±δ, by combining high-pressure electrical resistance, Hall coefficient (RH), and synchrotron X-ray diffraction (XRD) measurements at low temperatures. O...