Details
| Original language | English |
|---|---|
| Pages (from-to) | 1627-1632 |
| Number of pages | 6 |
| Journal | Microsystem Technologies |
| Volume | 22 |
| Issue number | 7 |
| Early online date | 9 Jan 2016 |
| Publication status | Published - Jul 2016 |
Abstract
We have performed magneto-optical measurements of sputter deposited permalloy (NiFe 81/19) thin films on a polyimide based spin-on substrate and a silicon oxide substrate. Experiments were performed by means of the magneto-optic Kerr effect in order to complement the findings concerning soft magnetic behaviour on the macroscopic scale presented previously (Rittinger et al., Impact of different polyimide-based substrates on the soft magnetic properties of NiFe thin films, SPIE Microtechnologies. International Society for Optics and Photonics, Bellingham, pp 95171R, 2015) with new insights into the magnetic domain structures of such samples. First, magnetization curves (R–H-, B–H-curves) are compared with corresponding magneto-optical hystereses. Second, by taking into consideration the results of the magnetic microstructure analysis, further aspects of the interactions between the substrate and the functional thin film are revealed in form of analogies between observations on the microscopic scale and variations of macroscopic magnetization curves of analysed samples. Furthermore, the shape and detailed spatial arrangement of domains and their boundaries are determined for the investigated samples, supplying further information on the properties and state of stress of the thin films. Doing so, we aim to provide precise and reliable anisotropic magnetoresistive (AMR) sensors on flexible polymer substrates in the future.
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Condensed Matter Physics
- Computer Science(all)
- Hardware and Architecture
- Engineering(all)
- Electrical and Electronic Engineering
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In: Microsystem Technologies, Vol. 22, No. 7, 07.2016, p. 1627-1632.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Magnetic microstructure analysis of sputter deposited permalloy thin films on a spin-on polyimide substrate
AU - Rittinger, Johannes
AU - Taptimthong, Piriya
AU - Jogschies, Lisa
AU - Wurz, Marc C.
AU - Rissing, Lutz
N1 - Funding Information: This research has been sponsored in part by the German Research Foundation (DFG) within the Collaborative Research Center (SFB) 653 “Gentelligent Components in their Lifecycle”.
PY - 2016/7
Y1 - 2016/7
N2 - We have performed magneto-optical measurements of sputter deposited permalloy (NiFe 81/19) thin films on a polyimide based spin-on substrate and a silicon oxide substrate. Experiments were performed by means of the magneto-optic Kerr effect in order to complement the findings concerning soft magnetic behaviour on the macroscopic scale presented previously (Rittinger et al., Impact of different polyimide-based substrates on the soft magnetic properties of NiFe thin films, SPIE Microtechnologies. International Society for Optics and Photonics, Bellingham, pp 95171R, 2015) with new insights into the magnetic domain structures of such samples. First, magnetization curves (R–H-, B–H-curves) are compared with corresponding magneto-optical hystereses. Second, by taking into consideration the results of the magnetic microstructure analysis, further aspects of the interactions between the substrate and the functional thin film are revealed in form of analogies between observations on the microscopic scale and variations of macroscopic magnetization curves of analysed samples. Furthermore, the shape and detailed spatial arrangement of domains and their boundaries are determined for the investigated samples, supplying further information on the properties and state of stress of the thin films. Doing so, we aim to provide precise and reliable anisotropic magnetoresistive (AMR) sensors on flexible polymer substrates in the future.
AB - We have performed magneto-optical measurements of sputter deposited permalloy (NiFe 81/19) thin films on a polyimide based spin-on substrate and a silicon oxide substrate. Experiments were performed by means of the magneto-optic Kerr effect in order to complement the findings concerning soft magnetic behaviour on the macroscopic scale presented previously (Rittinger et al., Impact of different polyimide-based substrates on the soft magnetic properties of NiFe thin films, SPIE Microtechnologies. International Society for Optics and Photonics, Bellingham, pp 95171R, 2015) with new insights into the magnetic domain structures of such samples. First, magnetization curves (R–H-, B–H-curves) are compared with corresponding magneto-optical hystereses. Second, by taking into consideration the results of the magnetic microstructure analysis, further aspects of the interactions between the substrate and the functional thin film are revealed in form of analogies between observations on the microscopic scale and variations of macroscopic magnetization curves of analysed samples. Furthermore, the shape and detailed spatial arrangement of domains and their boundaries are determined for the investigated samples, supplying further information on the properties and state of stress of the thin films. Doing so, we aim to provide precise and reliable anisotropic magnetoresistive (AMR) sensors on flexible polymer substrates in the future.
UR - http://www.scopus.com/inward/record.url?scp=84953396638&partnerID=8YFLogxK
U2 - 10.1007/s00542-015-2792-0
DO - 10.1007/s00542-015-2792-0
M3 - Article
AN - SCOPUS:84953396638
VL - 22
SP - 1627
EP - 1632
JO - Microsystem Technologies
JF - Microsystem Technologies
SN - 0946-7076
IS - 7
ER -