Transmission XMCD-PEEM imaging of an engineered vertical FEBID cobalt nanowire with a domain wall

Wartelle, A. ; Pablo-Navarro, J. (Universidad de Zaragoza) ; Stano, M. ; Bochmann, S. ; Pairis, S. ; Rioult, M. ; Thirion, C. ; Belkhou, R. ; Teresa, J.M.D. (Universidad de Zaragoza) ; Magén, C. (Universidad de Zaragoza) ; Fruchart, O.

Resumen: Using focused electron-beam-induced deposition, we fabricate a vertical, platinum-coated cobalt nanowire with a controlled three-dimensional structure. The latter is engineered to feature bends along the height: these are used as pinning sites for domain walls, which are obtained at remanence after saturation of the nanostructure in a horizontally applied magnetic field. The presence of domain walls is investigated using x-ray magnetic circular dichroism (XMCD) coupled to photoemission electron microscopy (PEEM). The vertical geometry of our sample combined with the low incidence of the x-ray beam produce an extended wire shadow which we use to recover the wire''s magnetic configuration. In this transmission configuration, the whole sample volume is probed, thus circumventing the limitation of PEEM to surfaces. This article reports on the first study of magnetic nanostructures standing perpendicular to the substrate with XMCD-PEEM. The use of this technique in shadow mode enabled us to confirm the presence of a domain wall without direct imaging of the nanowire.

Idioma: Inglés

DOI: 10.1088/1361-6528/aa9eff

Año: 2018

Publicado en: Nanotechnology 29, 4 (2018), 045704 [10 pp]
ISSN: 0957-4484

Factor impacto JCR: 3.399 (2018)

Categ. JCR: PHYSICS, APPLIED rank: 34 / 148 = 0.23 (2018) - Q1 - T1
Categ. JCR: NANOSCIENCE & NANOTECHNOLOGY rank: 40 / 94 = 0.426 (2018) - Q2 - T2
Categ. JCR: MATERIALS SCIENCE, MULTIDISCIPLINARY rank: 83 / 293 = 0.283 (2018) - Q2 - T1

Factor impacto SCIMAGO: 1.056 - Bioengineering (Q1) - Chemistry (miscellaneous) (Q1) - Electrical and Electronic Engineering (Q1) - Nanoscience and Nanotechnology (Q1) - Mechanical Engineering (Q1) - Mechanics of Materials (Q1) - Materials Science (miscellaneous) (Q1)

Financiación: info:eu-repo/grantAgreement/ES/DGA-FEDER/E26
Financiación: info:eu-repo/grantAgreement/ES/MINECO-FEDER/MAT2014-51982-C2-1-R
Financiación: info:eu-repo/grantAgreement/ES/MINECO-FEDER/MAT2014-51982-C2-2-R
Financiación: info:eu-repo/grantAgreement/ES/MINECO-FEDER/MAT2015-69725-REDT
Financiación: info:eu-repo/grantAgreement/ES/MINECO-FSE/BOE-12-6-15

Tipo y forma: Artículo (PostPrint)

Área (Departamento): Área Cienc.Mater. Ingen.Metal. (Dpto. Ciencia Tecnol.Mater.Fl.)
Área (Departamento): Área Física Materia Condensada (Dpto. Física Materia Condensa.)