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arXiv · 1806.02036

Anomalous Antiferromagnetism in Metallic RuO$_2$ Determined by Resonant X-ray Scattering

Z. H. Zhu·J. Strempfer·R. R. Rao·J. Pelliciari·Y. Choi·T. Kawaguchi·H. You·J. F. Mitchell·Y. Shao-Horn·R. Comin
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Abstract

We studied the magnetic ordering of thin films and bulk crystals of rutile RuO$_2$ using resonant X-ray scattering across the Ru L$_2$ absorption edge. Combining polarization analysis and azimuthal-angle dependence of the magnetic Bragg signal, we have established the presence of G-type antiferromagnetism in RuO$_2$ 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 RuO$_2$ in antiferromagnetic spintronics.

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Z. H. Zhu, J. Strempfer, R. R. Rao, J. Pelliciari, Y. Choi, T. Kawaguchi, H. You, J. F. Mitchell, Y. Shao-Horn, R. Comin. 2018-06-06. Anomalous Antiferromagnetism in Metallic RuO$_2$ Determined by Resonant X-ray Scattering. https://doi.org/10.1103/physrevlett.122.017202

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