Gutenberg Open Science: Magnetic state control via field-angle-selective switching in asymmetric rings

Please use this identifier to cite or link to this item: http://doi.org/10.25358/openscience-5342

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DC Field	Value	Language
dc.contributor.author	Schönke, Daniel	-
dc.contributor.author	Reeve, Robert M.	-
dc.contributor.author	Stoll, Hermann	-
dc.contributor.author	Kläui, Mathias	-
dc.date.accessioned	2020-11-18T10:30:18Z	-
dc.date.available	2020-11-18T10:30:18Z	-
dc.date.issued	2020	-
dc.identifier.uri	https://openscience.ub.uni-mainz.de/handle/20.500.12030/5346	-
dc.description.abstract	Ferromagnetic rings have been proposed as an attractive geometry for spintronic storage devices, for instance by storing information in the chirality of the vortex state. Asymmetric rings in particular offer a simple approach to control the vortex-state chirality, and the asymmetry yields additional degrees of freedom for manipulating the states such as by the choice of the field angle with respect to the axes of the system. By using time-resolved scanning electron microscopy with polarization analysis, we directly demonstrate here the influence of the initial magnetization configuration and the field orientation with respect to the ring symmetry axis on the switching mode. The results of experimental imaging are explained by micromagnetic simulations. In particular, for a given field strength we observe switching from the vortex state to the onion state if the symmetry axis of the asymmetric ring is perpendicular to the field orientation. If the symmetry axis deviates slightly from the field orientation, the dynamics change to onion-to-reverse-onion switching with different possible switching pathways. This provides a mechanism for selectively setting different magnetic states by an appropriate choice of the amplitude and orientation of the magnetic field. Furthermore, the angular dependence of the switching is shown to vary with the vortex-state chirality, which could be of use for chirality-dependent logic.	en_GB
dc.language.iso	eng	de
dc.rights	InCopyright	*
dc.rights.uri	https://rightsstatements.org/page/InC/1.0/?language=en	*
dc.subject.ddc	530 Physik	de_DE
dc.subject.ddc	530 Physics	en_GB
dc.title	Magnetic state control via field-angle-selective switching in asymmetric rings	en_GB
dc.type	Zeitschriftenaufsatz	de
dc.identifier.doi	http://doi.org/10.25358/openscience-5342	-
jgu.type.contenttype	Scientific article	de
jgu.type.dinitype	article	en_GB
jgu.type.version	Accepted version	de
jgu.type.resource	Text	de
jgu.organisation.department	FB 08 Physik, Mathematik u. Informatik	de
jgu.organisation.number	7940	-
jgu.organisation.name	Johannes Gutenberg-Universität Mainz	-
jgu.rights.accessrights	openAccess	-
jgu.journal.title	Physical review applied	de
jgu.journal.volume	14	de
jgu.journal.issue	3	de
jgu.pages.alternative	Art. 034028	de
jgu.publisher.year	2020	-
jgu.publisher.name	College Park, Md.	de
jgu.publisher.place	American Physical Society	de
jgu.publisher.uri	https://doi.org/10.1103/PhysRevApplied.14.034028	de
jgu.publisher.issn	2331-7019	de
jgu.organisation.place	Mainz	-
jgu.subject.ddccode	530	de
jgu.publisher.doi	10.1103/PhysRevApplied.14.034028
jgu.organisation.ror	https://ror.org/023b0x485
Appears in collections:	JGU-Publikationen

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