Publikation: Spin configurations in Co 2 FeAl0.4Si0.6 Heusler alloy thin film elements
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2011
Autor:innen
Vaz, Carlos
Rhensius, Jan
Heidler, Jakoba
Bisig, André
Mentes, Tevfik
Locatelli, Andrea
Le Guyader, Loic
Nolting, Frithjof
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European Union (EU): 208162
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MASPIC (7. RP)
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Applied Physics Letters. 2011, 99(18), 182510. ISSN 0003-6951. Available under: doi: 10.1063/1.3657828
Zusammenfassung
We determine experimentally the spin structure of half-metallic Co2FeAl0.4Si0.6 Heusler alloy elements using magnetic microscopy. Following magnetic saturation, the dominant magnetic states consist of quasi-uniform configurations, where a strong influence from the magnetocrystalline anisotropy is visible. Heating experiments show the stability of the spin configuration of domain walls in confined geometries up to 800 K. The switching temperature for the transition from transverse to vortex walls in ring elements is found to increase with ring width, an effect attributed to structural changes and consequent changes in magnetic anisotropy, which start to occur in the narrower elements at lower temperatures.
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530 Physik
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aluminium alloys, cobalt alloys, heat treatment, iron alloys, magnetic anisotropy, magnetic domain walls, magnetic structure, magnetic thin films, metallic thin films, silicon alloys
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VAZ, Carlos, Jan RHENSIUS, Jakoba HEIDLER, Phillip WOHLHÜTER, André BISIG, Helmut KÖRNER, Tevfik MENTES, Andrea LOCATELLI, Loic LE GUYADER, Frithjof NOLTING, Tanja GRAF, Claudia FELSER, Laura HEYDERMAN, Mathias KLÄUI, 2011. Spin configurations in Co 2 FeAl0.4Si0.6 Heusler alloy thin film elements. In: Applied Physics Letters. 2011, 99(18), 182510. ISSN 0003-6951. Available under: doi: 10.1063/1.3657828BibTex
@article{Vaz2011confi-19795,
year={2011},
doi={10.1063/1.3657828},
title={Spin configurations in Co <sub>2</sub> FeAl<sub>0.4</sub>Si<sub>0.6</sub> Heusler alloy thin film elements},
number={18},
volume={99},
issn={0003-6951},
journal={Applied Physics Letters},
author={Vaz, Carlos and Rhensius, Jan and Heidler, Jakoba and Wohlhüter, Phillip and Bisig, André and Körner, Helmut and Mentes, Tevfik and Locatelli, Andrea and Le Guyader, Loic and Nolting, Frithjof and Graf, Tanja and Felser, Claudia and Heyderman, Laura and Kläui, Mathias},
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<dcterms:abstract xml:lang="eng">We determine experimentally the spin structure of half-metallic Co2FeAl0.4Si0.6 Heusler alloy elements using magnetic microscopy. Following magnetic saturation, the dominant magnetic states consist of quasi-uniform configurations, where a strong influence from the magnetocrystalline anisotropy is visible. Heating experiments show the stability of the spin configuration of domain walls in confined geometries up to 800 K. The switching temperature for the transition from transverse to vortex walls in ring elements is found to increase with ring width, an effect attributed to structural changes and consequent changes in magnetic anisotropy, which start to occur in the narrower elements at lower temperatures.</dcterms:abstract>
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