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Tailoring magnetism...
Tailoring magnetism at the nanometer scale in SmCo5 amorphous films
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- Moubah, Reda (författare)
- Uppsala universitet,Materialfysik
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- Magnus, Fridrik (författare)
- Uppsala universitet,Materialfysik
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- Östman, Erik (författare)
- Uppsala universitet,Institutionen för fysik och astronomi
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- Muhammad, Yousuf (författare)
- Uppsala universitet,Institutionen för fysik och astronomi
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- Arnalds, Unnar B. (författare)
- Uppsala universitet,Materialfysik
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- Ahlberg, Martina (författare)
- Uppsala universitet,Materialfysik
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- Hjörvarsson, Björgvin (författare)
- Uppsala universitet,Materialfysik
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- Andersson, Gabriella (författare)
- Uppsala universitet,Materialfysik
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(creator_code:org_t)
- 2013-09-18
- 2013
- Engelska.
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Ingår i: Journal of Physics. - : IOP Publishing. - 0953-8984 .- 1361-648X. ; 25:41, s. 416004-
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The thickness dependence of magnetic properties has been studied in SmCo5 amorphous films with imprinted in-plane anisotropy for thicknesses ranging down to the nanometer scale (2.5-100 nm). The field induced in-plane magnetic anisotropy decreases considerably when the film thickness is below 20 nm. Analysis of the magnetic anisotropy energy shows that the decrease of the induced in-plane anisotropy is accompanied by the development of an out-of-plane interface anisotropy. Two different regimes for the coercivity (H-c) change are found: below 3.75 nm, the H-c decreases continuously with decrease of the film thickness, whereas at above 3.75 nm, the H-c decreases with increase of the film thickness. This change in Hc can be understood by considering the decrease of the short range chemical order for the thinnest films (<3.75 nm) and the relative decrease of the interface contribution with increasing film thickness. The changes in anisotropy have a profound influence on the domain structure, in which the angle of the zigzag domain boundaries decreases with the inverse thickness of the layers.
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- art (ämneskategori)
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