Tunable superconductivity in parent cuprate Pr2CuO4±δ thin films

Tunable superconductivity in parent cuprate Pr₂CuO_4±δ thin films

Wei Xinjian^{1, 2}, He Ge^{1, 2}, Hu Wei^{1, 2}, Zhang Xu^{1, 2}, Qin Mingyang^{1, 2}, Yuan Jie^{1, 3}, Zhu Beiyi¹, Lin Yuan⁴, Jin Kui^{1, 2, 3, 5, †}

(a) Schematic diagram of polymer assisted deposition method with metallic ions represented by red dots and polymeric chains by thick dark lines. Panels (b)–(d) show XRD 2θ-scans, ϕ-scan, and rocking curve of (006) diffraction peak of the Pr₂CuO_4±δ film on the SrTiO₃ (001) substrate, respectively.