Tunable superconductivity in parent cuprate Pr2CuOδ thin films
Wei Xinjian1, 2, He Ge1, 2, Hu Wei1, 2, Zhang Xu1, 2, Qin Mingyang1, 2, Yuan Jie1, 3, Zhu Beiyi1, Lin Yuan4, Jin Kui1, 2, 3, 5, †
       

(a) Normal state Hall coefficient RH versus temperature for Pr2CuOδ films measured at B = 9 T ( B c ) . (b)–(d) Hall resistivity ρ xy versus B for S3, S22, US3.