Gutenberg Open Science: Circuits and excitations to enable Brownian token-based computing with skyrmions

Please use this identifier to cite or link to this item: http://doi.org/10.25358/openscience-6814

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DC Field	Value	Language
dc.contributor.author	Brems, Maarten A.	-
dc.contributor.author	Kläui, Mathias	-
dc.contributor.author	Virnau, Peter	-
dc.date.accessioned	2022-03-17T09:06:23Z	-
dc.date.available	2022-03-17T09:06:23Z	-
dc.date.issued	2021	-
dc.identifier.uri	https://openscience.ub.uni-mainz.de/handle/20.500.12030/6825	-
dc.description.abstract	Brownian computing exploits thermal motion of discrete signal carriers (tokens) for computations. In this paper, we address two major challenges that hinder competitive realizations of circuits and applications of Brownian token-based computing in actual devices, for instance, based on magnetic skyrmions. To overcome the problem that crossings generate for the fabrication of circuits, we design a crossing-free layout for a composite half-adder module. This layout greatly simplifies experimental implementations as wire crossings are effectively avoided. Additionally, our design is shorter to speed up computations compared to conventional designs. To address the key issue of slow computation based on thermal excitations, we propose to overlay artificial diffusion induced by an external excitation mechanism. For instance, if magnetic skyrmions are used as tokens, artificially induced diffusion by spin-orbit torques or other mechanisms increases the speed of computations by several orders of magnitude. Combined with conventional Brownian computing, the latter could greatly enhance the application scenarios of token-based computing, for example, for low power devices such as autonomous sensors with limited power that is harvested from the environment.	en_GB
dc.language.iso	eng	de
dc.rights	InCopyright	*
dc.rights.uri	http://rightsstatements.org/vocab/InC/1.0/	*
dc.subject.ddc	530 Physik	de_DE
dc.subject.ddc	530 Physics	en_GB
dc.title	Circuits and excitations to enable Brownian token-based computing with skyrmions	en_GB
dc.type	Zeitschriftenaufsatz	de
dc.identifier.doi	http://doi.org/10.25358/openscience-6814	-
jgu.type.contenttype	Scientific article	de
jgu.type.dinitype	article	en_GB
jgu.type.version	Published 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	Applied physics letters	de
jgu.journal.volume	119	de
jgu.journal.issue	13	de
jgu.pages.alternative	132405	de
jgu.publisher.year	2021	-
jgu.publisher.name	American Institute of Physics	de
jgu.publisher.place	Melville, NY	de
jgu.publisher.issn	1077-3118	de
jgu.organisation.place	Mainz	-
jgu.subject.ddccode	530	de
jgu.publisher.doi	10.1063/5.0063584	de
jgu.organisation.ror	https://ror.org/023b0x485
Appears in collections:	JGU-Publikationen

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