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Size-dependent effe...
Size-dependent effects in exchange-biased planar Hall effect sensor crosses
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- Donolato, M (författare)
- Department of Micro- and Nanotechnology, Technical University of Denmark, DTU Nanotech, Kongens Lyngby, Danmark, och L-NESS, Dipartimento di Fisica, Politecnico di Milano, Como, Italien
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- Dalslet, B T (författare)
- Department of Micro- and Nanotechnology, Technical University of Denmark, DTU Nanotech, Kongens Lyngby, Danmark
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- Damsgaard, C D (författare)
- Department of Micro- and Nanotechnology, Technical University of Denmark, DTU Nanotech, Kongens Lyngby, Danmark
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- Gunnarsson, Klas (författare)
- Uppsala universitet,Fasta tillståndets fysik
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- Jacobsen, C S (författare)
- Department of Physics, Technical University of Denmark, DTU Physics, Kongens Lyngby, Danmark
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- Svedlindh, Peter (författare)
- Uppsala universitet,Fasta tillståndets fysik
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- Hansen, Mikkel F (författare)
- Department of Micro- and Nanotechnology, Technical University of Denmark, DTU Nanotech, Kongens Lyngby, Danmark
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(creator_code:org_t)
- AIP Publishing, 2011
- 2011
- Engelska.
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Ingår i: Journal of Applied Physics. - : AIP Publishing. - 0021-8979 .- 1089-7550. ; 109:6, s. 064511-
- 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
- Exchange-biased planar Hall effect magnetic field sensor crosses with arm width w have been studied as function of w. For large values of w, the magnetic behavior is hysteresis-free and follows the single domain Stoner-Wohlfarth model. When w is decreased, hysteresis is observed in the sensor response. For intermediate values of w, the magnetization reversal takes place in two steps, and for small values of w, the magnetization reversal takes place in a single step. Based on electrical measurements, magnetic force microscopy, and micromagnetic simulations, the observations are explained by an increasing magnetic shape anisotropy of the arms of the cross. We propose a simple analytical model that captures the essential physics of the observations and parameterizes the effects of the cross-shape on the central part of the cross.
Nyckelord
- TECHNOLOGY
- TEKNIKVETENSKAP
- Teknisk fysik med inriktning mot fasta tillståndets fysik
- Engineering Science with specialization in Solid State Physics
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- ref (ämneskategori)
- art (ämneskategori)
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