Structural origin of resonant diffraction in RuO$_2$
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arXiv
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| Format: | Preprint |
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2025
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| author | Occhialini, Connor A Nelson, Christie Bombardi, Alessandro Fan, Shiyu Acevedo-Esteves, Raul Comin, Riccardo Basov, Dmitri N Musashi, Maki Kawasaki, Masashi Uchida, Masaki You, Hoydoo Mitchell, John Bisogni, Valentina Mazzoli, Claudio Pelliciari, Jonathan |
| author_facet | Occhialini, Connor A Nelson, Christie Bombardi, Alessandro Fan, Shiyu Acevedo-Esteves, Raul Comin, Riccardo Basov, Dmitri N Musashi, Maki Kawasaki, Masashi Uchida, Masaki You, Hoydoo Mitchell, John Bisogni, Valentina Mazzoli, Claudio Pelliciari, Jonathan |
| contents | We report Ru L$_3$-edge resonant X-ray diffraction studies on single crystal and (001) epitaxial films of RuO$_2$. We investigate the distinct $\mathbf{Q} = (100)$ and $(001)$ reflections as a function of incident energy, azimuthal angle, and temperature. The results show that the observed resonant diffraction in RuO$_2$ is fully consistent with a resonant charge anisotropy signal of structural origin permitted by the parent (non-magnetic) rutile $P4_2/mnm$ space group. These results significantly constrain the magnetic contribution to the resonant diffraction signal and indicate the unlikely existence of $\mathbf{k} = 0$ antiferromagnetic order in RuO$_2$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_13767 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Structural origin of resonant diffraction in RuO$_2$ Occhialini, Connor A Nelson, Christie Bombardi, Alessandro Fan, Shiyu Acevedo-Esteves, Raul Comin, Riccardo Basov, Dmitri N Musashi, Maki Kawasaki, Masashi Uchida, Masaki You, Hoydoo Mitchell, John Bisogni, Valentina Mazzoli, Claudio Pelliciari, Jonathan Strongly Correlated Electrons We report Ru L$_3$-edge resonant X-ray diffraction studies on single crystal and (001) epitaxial films of RuO$_2$. We investigate the distinct $\mathbf{Q} = (100)$ and $(001)$ reflections as a function of incident energy, azimuthal angle, and temperature. The results show that the observed resonant diffraction in RuO$_2$ is fully consistent with a resonant charge anisotropy signal of structural origin permitted by the parent (non-magnetic) rutile $P4_2/mnm$ space group. These results significantly constrain the magnetic contribution to the resonant diffraction signal and indicate the unlikely existence of $\mathbf{k} = 0$ antiferromagnetic order in RuO$_2$. |
| title | Structural origin of resonant diffraction in RuO$_2$ |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2510.13767 |