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Itinerant Antiferromagnetism in RuO2
Open accessAbstract
Bulk rutile RuO_{2} has long been considered a Pauli paramagnet. Here we report that RuO_{2} exhibits a hitherto undetected lattice distortion below approximately 900 K. The distortion is accompanied by antiferromagnetic order up to at least 300 K with a small room temperature magnetic moment of approximately 0.05μ_{B} as evidenced by polarized neutron diffraction. Density functional theory plus U (DFT+U) calculations indicate that antiferromagnetism is favored even for small values of the Hubbard U of the order of 1 eV. The antiferromagnetism may be traced to a Fermi surface instability, lifting the band degeneracy imposed by the rutile crystal field. The combination of high Néel temperature and small itinerant moments make RuO_{2} unique among ruthenate compounds and among oxide materials in general.
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Density-functional thermochemistry. III. The role of exact exchange
Becke, A. D. (1993) · The Journal of Chemical Physics · doi:10.1063/1.464913 · Cited by 103,767
Cited by
Crystal time-reversal symmetry breaking and spontaneous Hall effect in collinear antiferromagnets
Šmejkal, L., González-Hernández, R., Jungwirth, T., & Sinova, J. (2020) · Science Advances · doi:10.1126/sciadv.aaz8809 · Cited by 914
Efficient Spin-to-Charge Conversion via Altermagnetic Spin Splitting Effect in Antiferromagnet RuO2
Bai, H., Zhang, Y. C., Zhou, Y. J., Chen, P., Wan, C. H., Han, L., Zhu, W. X., Liang, S. X., Su, Y. C., Han, X. F., et al. (2023) · Physical Review Letters · doi:10.1103/physrevlett.130.216701 · Cited by 282
Antiferromagnetic Correlations in the Metallic Strongly Correlated Transition Metal Oxide LaNiO3
Guo, H., Li, Z. W., Zhao, L., Hu, Z., Chang, C. F., Kuo, C.-Y., Schmidt, W., Piovano, A., Pi, T. W., Sobolev, O., et al. (2018) · Nature Communications · doi:10.1038/s41467-017-02524-x · Cited by 164
Metadata
- Authors
- Berlijn, T., Snijders, P. C., Delaire, O., Zhou, H.-D., Maier, T. A., Cao, H.-B., Chi, S.-X., Matsuda, M., Wang, Y., Koehler, M. R., Kent, P. R. C., & Weitering, H. H.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2017-02-15
- Volume
- 118
- Issue
- 7
- Pages
- 077201-077201
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2569040699
- Cited by
- 286
- References
- 1
- FWCI
- 2.27
- Type
- journal article
- Language
- en
- Open access
- green
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- Berlijn, T., Snijders, P. C., Delaire, O., Zhou, H.-D., Maier, T. A., Cao, H.-B., Chi, S.-X., Matsuda, M., Wang, Y., Koehler, M. R., Kent, P. R. C., & Weitering, H. H. (2017). Itinerant Antiferromagnetism in RuO2. Physical Review Letters. https://doi.org/10.1103/physrevlett.118.077201
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