Atomic-resolution scanning transmission electron microscope images of a La₃Ni₂O₇ single crystal. Some atoms are marked in red (oxygen), green (lanthanum), and blue (nickel). Selected for an Editors’ Suggestion.

From the article:

Unconventional Crystal Structure of the High-Pressure Superconductor ${\mathrm{La}}_3{\mathrm{Ni}}_2{\mathrm{O}}_7$
P. Puphal, P. Reiss, N. Enderlein, Y.-M. Wu, G. Khaliullin, V. Sundaramurthy, T. Priessnitz, M. Knauft, A. Suthar, L. Richter, M. Isobe, P. A. van Aken, H. Takagi, B. Keimer, Y. E. Suyolcu, B. Wehinger, P. Hansmann, and M. Hepting
Phys. Rev. Lett. 133, 146002 (2024)

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