Enhanced Nonadiabaticity in Vortex Cores due to the Emergent Hall Effect

Bisig, André; Akosa, Collins Ashu; Moon, Jung-Hwan; Rhensius, Jan; Moutafis, Christoforos; von Bieren, Arndt; Heidler, Jakoba; Kiliani, Gillian; Kammerer, Matthias; Kläui, Mathias

Enhanced Nonadiabaticity in Vortex Cores due to the Emergent Hall Effect

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Datum

2016

Autor:innen

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.

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Physical Review Letters. 2016, 117(27), 277203. ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.117.277203

Zusammenfassung

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.

Fachgebiet (DDC)

530 Physik

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ISO 690

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. 2016, 117(27), 277203. ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.117.277203

BibTex

@article{Bisig2016Enhan-37881,
  year={2016},
  doi={10.1103/PhysRevLett.117.277203},
  title={Enhanced Nonadiabaticity in Vortex Cores due to the Emergent Hall Effect},
  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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Universitätsbibliographie

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