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DOE OSTI · 3016014

Structural origin of resonant diffraction in RuO2

Occhialini, Connor·Bisogni, Valentina (ORCID:0000000273999930)
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Abstract

We report Ru L3-edge resonant X-ray diffraction studies on single crystal and (001) oriented epitaxial films of RuO2. We investigate the distinct Q = (100) and (001) Bragg-forbidden reflections as a function of incident energy, azimuthal angle, and temperature. The results show that the observed resonant diffraction in RuO2 is fully consistent with a resonant charge anisotropy signal of structural origin permitted by the parent (non-magnetic) rutile P42/mnm space group. These results significantly constrain the magnetic contribution to the resonant diffraction signal and indicate the unlikely existence of k = 0 antiferromagnetic order in RuO2.

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36 MATERIALS SCIENCE

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Occhialini, Connor, Bisogni, Valentina (ORCID:0000000273999930). 2026-02-28. Structural origin of resonant diffraction in RuO2. https://doi.org/10.1103/yr5q-1v1s

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