000156553 001__ 156553 000156553 005__ 20251017144556.0 000156553 0247_ $$2doi$$a10.1021/acsnano.0c00720 000156553 0248_ $$2sideral$$a119590 000156553 037__ $$aART-2020-119590 000156553 041__ $$aeng 000156553 100__ $$aSanz-Hernández, D. 000156553 245__ $$aArtificial Double-Helix for Geometrical Control of Magnetic Chirality 000156553 260__ $$c2020 000156553 5060_ $$aAccess copy available to the general public$$fUnrestricted 000156553 5203_ $$aChirality plays a major role in nature, from particle physics to DNA, and its control is much sought-after due to the scientific and technological opportunities it unlocks. For magnetic materials, chiral interactions between spins promote the formation of sophisticated swirling magnetic states such as skyrmions, with rich topological properties and great potential for future technologies. Currently, chiral magnetism requires either a restricted group of natural materials or synthetic thin-film systems that exploit interfacial effects. Here, using state-of-the-art nanofabrication and magnetic X-ray microscopy, we demonstrate the imprinting of complex chiral spin states via three-dimensional geometric effects at the nanoscale. By balancing dipolar and exchange interactions in an artificial ferromagnetic double-helix nanostructure, we create magnetic domains and domain walls with a well-defined spin chirality, determined solely by the chiral geometry. We further demonstrate the ability to create confined 3D spin textures and topological defects by locally interfacing geometries of opposite chirality. The ability to create chiral spin textures via 3D nanopatterning alone enables exquisite control over the properties and location of complex topological magnetic states, of great importance for the development of future metamaterials and devices in which chirality provides enhanced functionality. Copyright 000156553 536__ $$9info:eu-repo/grantAgreement/EC/H2020/746954/EU/Novel industrial processes using the Atomic Layer Deposition technique/ALDing$$9This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 746954-ALDing$$9info:eu-repo/grantAgreement/ES/MINECO-FSE/BES-2015-072950$$9info:eu-repo/grantAgreement/ES/MINECO/MAT2017-82970-C2-1-R$$9info:eu-repo/grantAgreement/ES/MINECO/MAT2017-82970-C2-2-R$$9info:eu-repo/grantAgreement/ES/MINECO/MAT2018-102627-T 000156553 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttps://creativecommons.org/licenses/by/4.0/deed.es 000156553 590__ $$a15.881$$b2020 000156553 591__ $$aCHEMISTRY, PHYSICAL$$b12 / 162 = 0.074$$c2020$$dQ1$$eT1 000156553 591__ $$aNANOSCIENCE & NANOTECHNOLOGY$$b11 / 106 = 0.104$$c2020$$dQ1$$eT1 000156553 591__ $$aCHEMISTRY, MULTIDISCIPLINARY$$b14 / 178 = 0.079$$c2020$$dQ1$$eT1 000156553 591__ $$aMATERIALS SCIENCE, MULTIDISCIPLINARY$$b21 / 333 = 0.063$$c2020$$dQ1$$eT1 000156553 592__ $$a5.554$$b2020 000156553 593__ $$aEngineering (miscellaneous)$$c2020$$dQ1 000156553 593__ $$aPhysics and Astronomy (miscellaneous)$$c2020$$dQ1 000156553 593__ $$aNanoscience and Nanotechnology$$c2020$$dQ1 000156553 593__ $$aMaterials Science (miscellaneous)$$c2020$$dQ1 000156553 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion 000156553 700__ $$aHierro-Rodriguez, A. 000156553 700__ $$aDonnelly, C. 000156553 700__ $$0(orcid)0000-0001-6771-6941$$aPablo-Navarro, J. 000156553 700__ $$aSorrentino, A. 000156553 700__ $$aPereiro, E. 000156553 700__ $$0(orcid)0000-0002-6761-6171$$aMagén, C.$$uUniversidad de Zaragoza 000156553 700__ $$aMcVitie, S. 000156553 700__ $$0(orcid)0000-0001-9566-0738$$aDe Teresa, J.M.$$uUniversidad de Zaragoza 000156553 700__ $$aFerrer, S. 000156553 700__ $$aFischer, P. 000156553 700__ $$aFernández-Pacheco, A. 000156553 7102_ $$12003$$2395$$aUniversidad de Zaragoza$$bDpto. Física Materia Condensa.$$cÁrea Física Materia Condensada 000156553 773__ $$g14, 7 (2020), 8084-8092$$pACS Nano$$tACS NANO$$x1936-0851 000156553 8564_ $$s7758055$$uhttps://zaguan.unizar.es/record/156553/files/texto_completo.pdf$$yVersión publicada 000156553 8564_ $$s3372769$$uhttps://zaguan.unizar.es/record/156553/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada 000156553 909CO $$ooai:zaguan.unizar.es:156553$$particulos$$pdriver 000156553 951__ $$a2025-10-17-14:13:20 000156553 980__ $$aARTICLE