Structural origin of resonant diffraction in RuO₂

2025/10/15 by Connor A. Occhialini, Christie Nelson, Occhialini, Connor A +26 · 2 citations
Engineering · #Civil and Geotechnical Engineering Research

paper · pdf · doi:10.48550/arxiv.2510.13767

Abstract

We report Ru L₃-edge resonant X-ray diffraction studies on single crystal and (001) epitaxial films of RuO₂. We investigate the distinct Q = (100) and (001) 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.

Citations

• Constraints on magnetism and correlations in RuO₂ from lattice dynamics and Mössbauer spectroscopy
• Absence of magnetic order in RuO₂: insights from μSR spectroscopy and neutron diffraction
• Chiral magnons in altermagnetic RuO2
• Strain-modulated anisotropic electronic structure in superconducting RuO₂ films
• Momentum-Dependent Spin Splitting by Collinear Antiferromagnetic Ordering
• Crystal Hall effect in Collinear Antiferromagnets

Cited by

• Preparation and evaluation of alexandrite, forsterite, and topaz substrates for the epitaxial growth of rutile oxides
• Is ruthenium dioxide altermagnet?

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