Extended Data Fig. 3: MEP imaging of the HPO-annealed sample along [010] axis.
From: Interstitial oxygen order and its competition with superconductivity in La2PrNi2O7+δ
![Extended Data Fig. 3: MEP imaging of the HPO-annealed sample along [010] axis.](http://media.springernature.com/full/springer-static/esm/art%3A10.1038%2Fs41563-025-02351-2/MediaObjects/41563_2025_2351_Fig7_ESM.jpg)
a, Atomic model for HPO projected along the [010] axis. b, MEP reconstructed image of HPO along the [010] axis. Intercalated layers of interstitial oxygens are denoted by black arrows. Note that the octahedral distortions are manifested as the vertical elongation of oxygen columns upon projection.