Extended Data Fig. 7: Normal state Hall coefficients of SECS thin films.
From: Bulk superconductivity near 40 K in hole-doped SmNiO2 at ambient pressure

a, Hall coefficients versus temperature \({R}_{H}(T\,)\) plot. b, Majority holes versus electrons phase diagram of various infinite-layer nickelates \(({\rm{R}},{\rm{A}}){\rm{Ni}}{{\rm{O}}}_{2}\) showing RH sign crossover temperature Th as a function of hole doping, adapted from refs. 16,17,18,59. For Sm1-x-y-zEuxCaySrzNiO2, hole doping is estimated as \(h=0.6x+y+z\) (ref. 19). c, Maximum Th as a function of rare earth ions (R) from La – Sm.