Observation of Hydrogen-Induced Dzyaloshinskii-Moriya Interaction and Reversible Switching of Magnetic Chirality

The Dzyaloshinskii-Moriya interaction (DMI) has drawn much attention, as it stabilizes magnetic chirality, with important implications in fundamental and applied research. This antisymmetric exchange interaction is induced by the broken inversion symmetry at interfaces or in noncentrosymmetric latti...

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Autores principales:	Gong Chen, MacCallum Robertson, Markus Hoffmann, Colin Ophus, André L. Fernandes Cauduro, Roberto Lo Conte, Haifeng Ding, Roland Wiesendanger, Stefan Blügel, Andreas K. Schmid, Kai Liu
Formato:	article
Lenguaje:	EN
Publicado:	American Physical Society 2021
Materias:	Physics QC1-999
Acceso en línea:	https://doaj.org/article/862d2ac1c8c946048bda918a51ac1576
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spelling	oai:doaj.org-article:862d2ac1c8c946048bda918a51ac15762021-12-02T18:04:08ZObservation of Hydrogen-Induced Dzyaloshinskii-Moriya Interaction and Reversible Switching of Magnetic Chirality10.1103/PhysRevX.11.0210152160-3308https://doaj.org/article/862d2ac1c8c946048bda918a51ac15762021-04-01T00:00:00Zhttp://doi.org/10.1103/PhysRevX.11.021015http://doi.org/10.1103/PhysRevX.11.021015https://doaj.org/toc/2160-3308The Dzyaloshinskii-Moriya interaction (DMI) has drawn much attention, as it stabilizes magnetic chirality, with important implications in fundamental and applied research. This antisymmetric exchange interaction is induced by the broken inversion symmetry at interfaces or in noncentrosymmetric lattices. Significant interfacial DMIs are often found at magnetic/heavy-metal interfaces with large spin-orbit coupling. Recent studies have shown promise for induced DMI at interfaces involving light elements such as carbon (graphene) or oxygen. Here, we report direct observation of induced DMI by chemisorption of the lightest element, hydrogen, on a ferromagnetic layer at room temperature, which is supported by density functional theory calculations. We further demonstrate a reversible chirality transition of the magnetic domain walls due to the induced DMI via hydrogen chemisorption and desorption. These results shed new light on the understanding of DMI in low atomic number materials and the design of novel chiral spintronics and magneto-ionic devices.Gong ChenMacCallum RobertsonMarkus HoffmannColin OphusAndré L. Fernandes CauduroRoberto Lo ConteHaifeng DingRoland WiesendangerStefan BlügelAndreas K. SchmidKai LiuAmerican Physical SocietyarticlePhysicsQC1-999ENPhysical Review X, Vol 11, Iss 2, p 021015 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999
spellingShingle	Physics QC1-999 Gong Chen MacCallum Robertson Markus Hoffmann Colin Ophus André L. Fernandes Cauduro Roberto Lo Conte Haifeng Ding Roland Wiesendanger Stefan Blügel Andreas K. Schmid Kai Liu Observation of Hydrogen-Induced Dzyaloshinskii-Moriya Interaction and Reversible Switching of Magnetic Chirality
description	The Dzyaloshinskii-Moriya interaction (DMI) has drawn much attention, as it stabilizes magnetic chirality, with important implications in fundamental and applied research. This antisymmetric exchange interaction is induced by the broken inversion symmetry at interfaces or in noncentrosymmetric lattices. Significant interfacial DMIs are often found at magnetic/heavy-metal interfaces with large spin-orbit coupling. Recent studies have shown promise for induced DMI at interfaces involving light elements such as carbon (graphene) or oxygen. Here, we report direct observation of induced DMI by chemisorption of the lightest element, hydrogen, on a ferromagnetic layer at room temperature, which is supported by density functional theory calculations. We further demonstrate a reversible chirality transition of the magnetic domain walls due to the induced DMI via hydrogen chemisorption and desorption. These results shed new light on the understanding of DMI in low atomic number materials and the design of novel chiral spintronics and magneto-ionic devices.
format	article
author	Gong Chen MacCallum Robertson Markus Hoffmann Colin Ophus André L. Fernandes Cauduro Roberto Lo Conte Haifeng Ding Roland Wiesendanger Stefan Blügel Andreas K. Schmid Kai Liu
author_facet	Gong Chen MacCallum Robertson Markus Hoffmann Colin Ophus André L. Fernandes Cauduro Roberto Lo Conte Haifeng Ding Roland Wiesendanger Stefan Blügel Andreas K. Schmid Kai Liu
author_sort	Gong Chen
title	Observation of Hydrogen-Induced Dzyaloshinskii-Moriya Interaction and Reversible Switching of Magnetic Chirality
title_short	Observation of Hydrogen-Induced Dzyaloshinskii-Moriya Interaction and Reversible Switching of Magnetic Chirality
title_full	Observation of Hydrogen-Induced Dzyaloshinskii-Moriya Interaction and Reversible Switching of Magnetic Chirality
title_fullStr	Observation of Hydrogen-Induced Dzyaloshinskii-Moriya Interaction and Reversible Switching of Magnetic Chirality
title_full_unstemmed	Observation of Hydrogen-Induced Dzyaloshinskii-Moriya Interaction and Reversible Switching of Magnetic Chirality
title_sort	observation of hydrogen-induced dzyaloshinskii-moriya interaction and reversible switching of magnetic chirality
publisher	American Physical Society
publishDate	2021
url	https://doaj.org/article/862d2ac1c8c946048bda918a51ac1576
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Observation of Hydrogen-Induced Dzyaloshinskii-Moriya Interaction and Reversible Switching of Magnetic Chirality

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