Enhanced Nonadiabaticity in Vortex Cores due to the Emergent Hall Effect
| Type of Publication: | Journal article |
| Publication status: | Published |
| Author: | Bisig, André; Akosa, Collins Ashu; Moon, Jung-Hwan; Rhensius, Jan; Moutafis, Christoforos; von Bieren, Arndt; Heidler, Jakoba; Kiliani, Gillian; Kammerer, Matthias; Kläui, Mathias et al. |
| Year of publication: | 2016 |
| Published in: | Physical Review Letters ; 117 (2016), 27. - 277203. - ISSN 0031-9007. - eISSN 1079-7114 |
| Pubmed ID: | 28084754 |
| ArXiv-ID: | arXiv:1511.06585 |
| DOI (citable link): | https://dx.doi.org/10.1103/PhysRevLett.117.277203 |
| Summary: |
We present a combined theoretical and experimental study, investigating the origin of the enhanced non-adiabaticity of magnetic vortex cores. Scanning transmission X-ray microscopy is used to image the vortex core gyration dynamically to measure the non-adiabaticity with high precision, including a high confidence upper bound. Using both numerical computations and analytical derivations, we show that the large non-adiabaticity parameter observed experimentally can be explained by the presence of local spin currents arising from a texture-induced emergent Hall effect. This enhanced non-adiabaticity is only present in two- and three-dimensional magnetic textures such as vortices and skyrmions and absent in one-dimensional domain walls, in agreement with experimental observations.
|
| Subject (DDC): | 530 Physics |
| Bibliography of Konstanz: | Yes |
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BISIG, André, Collins Ashu AKOSA, Jung-Hwan MOON, Jan RHENSIUS, Christoforos MOUTAFIS, Arndt VON BIEREN, Jakoba HEIDLER, Gillian KILIANI, Matthias KAMMERER, Mathias KLÄUI, 2016. Enhanced Nonadiabaticity in Vortex Cores due to the Emergent Hall Effect. In: Physical Review Letters. 117(27), 277203. ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.117.277203
@article{Bisig2016Enhan-37881, title={Enhanced Nonadiabaticity in Vortex Cores due to the Emergent Hall Effect}, year={2016}, doi={10.1103/PhysRevLett.117.277203}, number={27}, volume={117}, issn={0031-9007}, journal={Physical Review Letters}, author={Bisig, André and Akosa, Collins Ashu and Moon, Jung-Hwan and Rhensius, Jan and Moutafis, Christoforos and von Bieren, Arndt and Heidler, Jakoba and Kiliani, Gillian and Kammerer, Matthias and Kläui, Mathias}, note={Article Number: 277203} }
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