Current-Driven Domain Wall Motion in Curved Ferrimagnetic Strips Above and Below the Angular Momentum Compensation

Current driven domain wall motion in curved Heavy Metal/Ferrimagnetic/Oxide multilayer strips is investigated using systematic micromagnetic simulations which account for spin-orbit coupling phenomena. Domain wall velocity and characteristic relaxation times are studied as functions of the geometry,...

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Autores principales:	D. Osuna Ruiz, O. Alejos, V. Raposo, E. Martínez
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	spintronics ferrimagnetism spin-orbit coupling micromagnetics simulation domain walls Physics QC1-999
Acceso en línea:	https://doaj.org/article/26c81c89fc4645368be571da1ad3e4b8
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id	oai:doaj.org-article:26c81c89fc4645368be571da1ad3e4b8
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spelling	oai:doaj.org-article:26c81c89fc4645368be571da1ad3e4b82021-12-03T05:06:39ZCurrent-Driven Domain Wall Motion in Curved Ferrimagnetic Strips Above and Below the Angular Momentum Compensation2296-424X10.3389/fphy.2021.772264https://doaj.org/article/26c81c89fc4645368be571da1ad3e4b82021-12-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fphy.2021.772264/fullhttps://doaj.org/toc/2296-424XCurrent driven domain wall motion in curved Heavy Metal/Ferrimagnetic/Oxide multilayer strips is investigated using systematic micromagnetic simulations which account for spin-orbit coupling phenomena. Domain wall velocity and characteristic relaxation times are studied as functions of the geometry, curvature and width of the strip, at and out of the angular momentum compensation. Results show that domain walls can propagate faster and without a significant distortion in such strips in contrast to their ferromagnetic counterparts. Using an artificial system based on a straight strip with an equivalent current density distribution, we can discern its influence on the wall terminal velocity, as part of a more general geometrical influence due to the curved shape. Curved and narrow ferrimagnetic strips are promising candidates for designing high speed and fast response spintronic circuitry based on current-driven domain wall motion.D. Osuna RuizO. AlejosV. RaposoE. MartínezFrontiers Media S.A.articlespintronicsferrimagnetismspin-orbit couplingmicromagnetics simulationdomain wallsPhysicsQC1-999ENFrontiers in Physics, Vol 9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	spintronics ferrimagnetism spin-orbit coupling micromagnetics simulation domain walls Physics QC1-999
spellingShingle	spintronics ferrimagnetism spin-orbit coupling micromagnetics simulation domain walls Physics QC1-999 D. Osuna Ruiz O. Alejos V. Raposo E. Martínez Current-Driven Domain Wall Motion in Curved Ferrimagnetic Strips Above and Below the Angular Momentum Compensation
description	Current driven domain wall motion in curved Heavy Metal/Ferrimagnetic/Oxide multilayer strips is investigated using systematic micromagnetic simulations which account for spin-orbit coupling phenomena. Domain wall velocity and characteristic relaxation times are studied as functions of the geometry, curvature and width of the strip, at and out of the angular momentum compensation. Results show that domain walls can propagate faster and without a significant distortion in such strips in contrast to their ferromagnetic counterparts. Using an artificial system based on a straight strip with an equivalent current density distribution, we can discern its influence on the wall terminal velocity, as part of a more general geometrical influence due to the curved shape. Curved and narrow ferrimagnetic strips are promising candidates for designing high speed and fast response spintronic circuitry based on current-driven domain wall motion.
format	article
author	D. Osuna Ruiz O. Alejos V. Raposo E. Martínez
author_facet	D. Osuna Ruiz O. Alejos V. Raposo E. Martínez
author_sort	D. Osuna Ruiz
title	Current-Driven Domain Wall Motion in Curved Ferrimagnetic Strips Above and Below the Angular Momentum Compensation
title_short	Current-Driven Domain Wall Motion in Curved Ferrimagnetic Strips Above and Below the Angular Momentum Compensation
title_full	Current-Driven Domain Wall Motion in Curved Ferrimagnetic Strips Above and Below the Angular Momentum Compensation
title_fullStr	Current-Driven Domain Wall Motion in Curved Ferrimagnetic Strips Above and Below the Angular Momentum Compensation
title_full_unstemmed	Current-Driven Domain Wall Motion in Curved Ferrimagnetic Strips Above and Below the Angular Momentum Compensation
title_sort	current-driven domain wall motion in curved ferrimagnetic strips above and below the angular momentum compensation
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/26c81c89fc4645368be571da1ad3e4b8
work_keys_str_mv	AT dosunaruiz currentdrivendomainwallmotionincurvedferrimagneticstripsaboveandbelowtheangularmomentumcompensation AT oalejos currentdrivendomainwallmotionincurvedferrimagneticstripsaboveandbelowtheangularmomentumcompensation AT vraposo currentdrivendomainwallmotionincurvedferrimagneticstripsaboveandbelowtheangularmomentumcompensation AT emartinez currentdrivendomainwallmotionincurvedferrimagneticstripsaboveandbelowtheangularmomentumcompensation
_version_	1718373920592101376

Current-Driven Domain Wall Motion in Curved Ferrimagnetic Strips Above and Below the Angular Momentum Compensation

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