Racetrack memory based on in-plane-field controlled domain-wall pinning

Abstract Magnetic domain wall motion could be the key to the next generation of data storage devices, shift registers without mechanically moving parts. Various concepts of such so-called ‘racetrack memories’ have been developed, but they are usually plagued by the need for high current densities or...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Fanny Ummelen, Henk Swagten, Bert Koopmans
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/3d23991ba1684ecca58483db56b398ac
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:3d23991ba1684ecca58483db56b398ac
record_format	dspace
spelling	oai:doaj.org-article:3d23991ba1684ecca58483db56b398ac2021-12-02T16:06:10ZRacetrack memory based on in-plane-field controlled domain-wall pinning10.1038/s41598-017-00837-x2045-2322https://doaj.org/article/3d23991ba1684ecca58483db56b398ac2017-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-00837-xhttps://doaj.org/toc/2045-2322Abstract Magnetic domain wall motion could be the key to the next generation of data storage devices, shift registers without mechanically moving parts. Various concepts of such so-called ‘racetrack memories’ have been developed, but they are usually plagued by the need for high current densities or complex geometrical requirements. We introduce a new device concept, based on the interfacial Dzyaloshinskii-Moriya interaction (DMI), of which the importance in magnetic thin films was recently discovered. In this device the domain walls are moved solely by magnetic fields. Unidirectionality is created utilizing the recent observation that the strength with which a domain wall is pinned at an anisotropy barrier depends on the direction of the in-plane field due to the chiral nature of DMI. We demonstrate proof-of-principle experiments to verify that unidirectional domain-wall motion is achieved and investigate several material stacks for this novel device including a detailed analysis of device performance for consecutive pinning and depinning processes.Fanny UmmelenHenk SwagtenBert KoopmansNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Fanny Ummelen Henk Swagten Bert Koopmans Racetrack memory based on in-plane-field controlled domain-wall pinning
description	Abstract Magnetic domain wall motion could be the key to the next generation of data storage devices, shift registers without mechanically moving parts. Various concepts of such so-called ‘racetrack memories’ have been developed, but they are usually plagued by the need for high current densities or complex geometrical requirements. We introduce a new device concept, based on the interfacial Dzyaloshinskii-Moriya interaction (DMI), of which the importance in magnetic thin films was recently discovered. In this device the domain walls are moved solely by magnetic fields. Unidirectionality is created utilizing the recent observation that the strength with which a domain wall is pinned at an anisotropy barrier depends on the direction of the in-plane field due to the chiral nature of DMI. We demonstrate proof-of-principle experiments to verify that unidirectional domain-wall motion is achieved and investigate several material stacks for this novel device including a detailed analysis of device performance for consecutive pinning and depinning processes.
format	article
author	Fanny Ummelen Henk Swagten Bert Koopmans
author_facet	Fanny Ummelen Henk Swagten Bert Koopmans
author_sort	Fanny Ummelen
title	Racetrack memory based on in-plane-field controlled domain-wall pinning
title_short	Racetrack memory based on in-plane-field controlled domain-wall pinning
title_full	Racetrack memory based on in-plane-field controlled domain-wall pinning
title_fullStr	Racetrack memory based on in-plane-field controlled domain-wall pinning
title_full_unstemmed	Racetrack memory based on in-plane-field controlled domain-wall pinning
title_sort	racetrack memory based on in-plane-field controlled domain-wall pinning
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/3d23991ba1684ecca58483db56b398ac
work_keys_str_mv	AT fannyummelen racetrackmemorybasedoninplanefieldcontrolleddomainwallpinning AT henkswagten racetrackmemorybasedoninplanefieldcontrolleddomainwallpinning AT bertkoopmans racetrackmemorybasedoninplanefieldcontrolleddomainwallpinning
_version_	1718385080969199616

Racetrack memory based on in-plane-field controlled domain-wall pinning

Ejemplares similares