Author Correction: Superconductivity and normal-state transport in compressively strained La₂PrNi₂O₇ thin films

Correction to: Nature Materials https://doi.org/10.1038/s41563-025-02258-y, published online 29 May 2025.

In the version of this article originally published, the Hall coefficient of La₂PrNi₂O₇ samples (P75, P78, P108) was reported with the wrong sign in Fig. 4b and Extended Data Fig. 8. This has now been corrected; the La₃Ni₂O₇ data from ref. 9 have been checked again and are unaffected. The original Fig. 4 and Extended Data Fig. 8 are available for comparison in the Supplementary information accompanying this amendment.

Accordingly, the cuprate reference dataset in Fig. 4b has been updated to include Hall coefficient data from more heavily overdoped cuprates to compare with the corrected data. Reference 25 has been changed from ‘Hwang, H. Y. et al. Scaling of the temperature dependent Hall effect in La_2-xSr_xCuO₄. Phys. Rev. Lett. 72, 2636–2639 (1994).’ to ‘Tsukada, I. & Ono, S. Negative Hall coefficients of heavily overdoped La_2-xSr_xCuO₄. Phys. Rev. B 74, 134508 (2006).’

The corresponding text in the third paragraph of the article has been revised from “Furthermore, Hall resistivity measurements (Extended Data. Fig. 6) also indicate a similar temperature dependence and comparable values of Hall coefficient (R_H(T)) between La₂PrNi₂O₇ and overdoped La_1.75Sr_0.25CuO₄ (data from ref. 25, Fig. 4b)” to “Furthermore, Hall resistivity measurements (Extended Data. Fig. 6) also indicate comparable values of negative Hall coefficient (R_H(T)) between optimized La₂PrNi₂O₇ and heavily overdoped La_1.6Sr_0.4CuO₄ (data from ref. 25, Fig. 4b), albeit with a stronger temperature dependence, likely arising from the multiband nature of the Fermi surface. By contrast, the positive R_H(T) in earlier La₃Ni₂O₇ samples⁹ follows the behaviour of less overdoped La_1.75Sr_0.25CuO₄. We postulate such difference does not originate from rare-earth substitution but rather suggests a higher Ni oxidation state in our thin film La₂PrNi₂O₇ due to a higher oxygen content.”

These corrections do not alter our main conclusion in Fig. 4 that “the normal-state transport behaviour resembles that of overdoped cuprates” but places La₂PrNi₂O₇ closer to the more heavily overdoped regime.

We thank Prof. Zhuoyu Chen for bringing this to our attention, and we deeply regret the error.