Magnetic patterning of Co/Ni layered systems by plasma oxidation.
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
21 Dec 2022
21 Dec 2022
Historique:
received:
13
10
2022
accepted:
16
12
2022
entrez:
21
12
2022
pubmed:
22
12
2022
medline:
22
12
2022
Statut:
epublish
Résumé
We studied the structural, chemical, and magnetic properties of Ti/Au/Co/Ni layered systems subjected to plasma oxidation. The process results in the formation of NiO at the expense of metallic Ni, as clearly evidenced by X-ray photoelectron spectroscopy, while not affecting the surface roughness and grain size of the Co/Ni bilayers. Since the decrease of the thickness of the Ni layer and the formation of NiO increase the perpendicular magnetic anisotropy, oxidation may be locally applied for magnetic patterning. Using this approach, we created 2D heterostructures characterized by different combinations of magnetic properties in areas modified by plasma oxidation and in the regions protected from oxidation. As plasma oxidation is an easy to use, low cost, and commonly utilized technique in industrial applications, it may constitute an improvement over other magnetic patterning methods.
Identifiants
pubmed: 36543839
doi: 10.1038/s41598-022-26604-1
pii: 10.1038/s41598-022-26604-1
pmc: PMC9772314
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
22060Subventions
Organisme : European Social Fund
ID : POWR.03.02.00-00-I032/16
Organisme : Narodowym Centrum Nauki
ID : 2019/33/B/ST5/02013
Informations de copyright
© 2022. The Author(s).
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