Anomalous Antiferromagnetism in Metallic RuO₂ Determined by Resonant X-ray Scattering

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Strempfer, J.; Choi, Y.; You, H.; Mitchell, J. F.; Zhu, Z. H.; ... Show more
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Abstract
We studied the magnetic ordering of thin films and bulk crystals of rutile RuO₂ using resonant x-ray scattering across the Ru L₂ absorption edge. Combining polarization analysis and azimuthal angle dependence of the magnetic Bragg signal, we have established the presence and characteristic of collinear antiferromagnetism in RuO₂ with T_{N}>300  K. In addition to revealing a spin-ordered ground state in the simplest ruthenium oxide compound, the persistence of magnetic order even in nanometer-thick films lays the ground for potential applications of RuO₂ in antiferromagnetic spintronics.
Date issued
2019-01
URI
http://hdl.handle.net/1721.1/119878
Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering; Massachusetts Institute of Technology. Department of Mechanical Engineering; Massachusetts Institute of Technology. Department of Physics
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Zhu, Z. H., J. Strempfer, R. R. Rao, C. A. Occhialini, J. Pelliciari, Y. Choi, T. Kawaguchi, H. You, J. F. Mitchell, Y. Shao-Horn, and R. Comin. "Anomalous Antiferromagnetism in Metallic RuO₂ Determined by Resonant X-ray Scattering." Physical Review Letters 122, 017202 (2019).
Version: Final published version
ISSN
0031-9007
1079-7114
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