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Positive surface an...
Positive surface and perpendicular magnetic anisotropy in natural nanomorphous Ni/NiO multilayers
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Poulopoulos, P. (author)
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- Kapaklis, Vassilios (author)
- Uppsala universitet,Institutionen för fysik och astronomi
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- Jönsson, Petra E. (author)
- Uppsala universitet,Institutionen för fysik och astronomi
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- Papaioannou, Evangelos Th. (author)
- Uppsala universitet,Institutionen för fysik och astronomi
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Delimitis, A. (author)
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Pappas, S. D. (author)
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Trachylis, D. (author)
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Politis, C. (author)
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(creator_code:org_t)
- AIP Publishing, 2010
- 2010
- English.
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In: Applied Physics Letters. - : AIP Publishing. - 0003-6951 .- 1077-3118. ; 96:20, s. 202503-
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Ni/NiO multilayers with excellent sequencing are grown via radiofrequency magnetron sputtering with the use of one Ni target and natural oxidation. Ni layers consist of very small Ni nanocrystals interrupted by amorphous NiO layers. When Ni is deposited at 0.3 Pa Ar-pressure, the hard-magnetization axis is the film normal and saturation field decreases by decreasing Ni layer thickness. Considerable positive surface anisotropy is found, which is remarkable for Ni-based multilayers. If Ni is deposited at 3 Pa Ar-pressure, perpendicular magnetic anisotropy is observed at low temperatures even for 5.4 nm thick Ni layers. This anisotropy results in the formation of stripe magnetic domains.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- amorphous magnetic materials
- magnetic anisotropy
- magnetic domains
- magnetic multilayers
- nanostructured materials
- nickel
- nickel compounds
- oxidation
- sputter deposition
- Physics
- Fysik
Publication and Content Type
- ref (subject category)
- art (subject category)
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