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Chiral Magnetic E ff ect and Anomalous Hall E ff ect in Antiferromagnetic Insulators with Spin-Orbit Coupling
| Content Provider | Semantic Scholar |
|---|---|
| Author | Sekine, Akihiko Nomura, Kentaro |
| Copyright Year | 2016 |
| Abstract | We search for dynamical magnetoelectric phenomena in three-dimensional correlated systems with spinorbit coupling. We focus on the antiferromagnetic insulator phases where the dynamical axion field is realized by the fluctuation of the antiferromagnetic order parameter. It is shown that the dynamical chiral magnetic effect, an alternating current generation by magnetic fields, emerges due to the time dependences of the order parameter such as antiferromagnetic resonance. It is also shown that the anomalous Hall effect arises due to the spatial variations of the order parameter such as antiferromagnetic domain walls. Our study indicates that spin excitations in antiferromagnetic insulators with spin-orbit coupling can result in nontrivial charge responses. Moreover, observing the chiral magnetic effect and anomalous Hall effect in our system is equivalent to detecting the dynamical axion field in condensed matter. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://export.arxiv.org/pdf/1508.04590 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
