$d$-wave superconducting gap observed in protect-annealed electron-doped cuprate superconductors Pr${}_{1.3-x}$La${}_{0.7}$Ce${}_x$CuO${}_4$

M. Horio, K. Koshiishi, S. Nakata +11

For electron-doped cuprates, the strong suppression of antiferromagnetic spin correlation by efficient reduction annealing by the "protect-annealing" method leads to superconductiv…