Nanoscale switch for vortex polarization mediated by Bloch core formation in magnetic hybrid systems

Phillip Wohlhüter, Matthew Thomas Bryan, Peter Warnicke, Sebastian Gliga, Stephanie Elizabeth Stevenson, Georg Heldt, Lalita Saharan, Anna Kinga Suszka, Christoforos Moutafis, Rajesh Vilas Chopdekar, Jörg Raabe, Thomas Thomson, Gino Hrkac () and Laura Jane Heyderman ()
Additional contact information
Phillip Wohlhüter: Laboratory for Mesoscopic Systems, ETH Zurich
Matthew Thomas Bryan: University of Sheffield
Peter Warnicke: Paul Scherrer Institute
Sebastian Gliga: Laboratory for Mesoscopic Systems, ETH Zurich
Stephanie Elizabeth Stevenson: Paul Scherrer Institute
Georg Heldt: School of Computer Science, University of Manchester
Lalita Saharan: College of Engineering, Mathematics and Physical Sciences, University of Exeter
Anna Kinga Suszka: Laboratory for Mesoscopic Systems, ETH Zurich
Christoforos Moutafis: Paul Scherrer Institute
Rajesh Vilas Chopdekar: Paul Scherrer Institute
Jörg Raabe: Paul Scherrer Institute
Thomas Thomson: School of Computer Science, University of Manchester
Gino Hrkac: College of Engineering, Mathematics and Physical Sciences, University of Exeter
Laura Jane Heyderman: Laboratory for Mesoscopic Systems, ETH Zurich

Nature Communications, 2015, vol. 6, issue 1, 1-6

Abstract: Abstract Vortices are fundamental magnetic topological structures characterized by a curling magnetization around a highly stable nanometric core. The control of the polarization of this core and its gyration is key to the utilization of vortices in technological applications. So far polarization control has been achieved in single-material structures using magnetic fields, spin-polarized currents or spin waves. Here we demonstrate local control of the vortex core orientation in hybrid structures where the vortex in an in-plane Permalloy film coexists with out-of-plane maze domains in a Co/Pd multilayer. The vortex core reverses its polarization on crossing a maze domain boundary. This reversal is mediated by a pair of magnetic singularities, known as Bloch points, and leads to the transient formation of a three-dimensional magnetization structure: a Bloch core. The interaction between vortex and domain wall thus acts as a nanoscale switch for the vortex core polarization.

Date: 2015
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/ncomms8836 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms8836

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/ncomms8836

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().