書誌事項
- 公開日
- 2018-08-16
- 権利情報
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- https://creativecommons.org/licenses/by/4.0
- https://creativecommons.org/licenses/by/4.0
- DOI
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- 10.1038/s41467-018-05756-7
- 公開者
- Springer Science and Business Media LLC
説明
<jats:title>Abstract</jats:title><jats:p>An ordinary Hall effect in a conductor arises due to the Lorentz force acting on the charge carriers. In ferromagnets, an additional contribution to the Hall effect, the anomalous Hall effect (AHE), appears proportional to the magnetization. While the AHE is not seen in a collinear antiferromagnet, with zero net magnetization, recently it has been shown that an intrinsic AHE can be non-zero in non-collinear antiferromagnets as well as in topological materials hosting Weyl nodes near the Fermi energy. Here we report a large anomalous Hall effect with Hall conductivity of 27 Ω<jats:sup>−1</jats:sup> cm<jats:sup>−1</jats:sup> in a chiral-lattice antiferromagnet, CoNb<jats:sub>3</jats:sub>S<jats:sub>6</jats:sub> consisting of a small intrinsic ferromagnetic component (≈0.0013 <jats:italic>μ</jats:italic><jats:sub>B</jats:sub> per Co) along <jats:italic>c</jats:italic>-axis. This small moment alone cannot explain the observed size of the AHE. We attribute the AHE to either formation of a complex magnetic texture or the combined effect of the small intrinsic moment on the electronic band structure.</jats:p>
収録刊行物
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- Nature Communications
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Nature Communications 9 (1), 3280-, 2018-08-16
Springer Science and Business Media LLC
