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Effect of buffer layer and external stress on magnetic properties of flexible FeGa films
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10.1063/1.4793602
/content/aip/journal/jap/113/17/10.1063/1.4793602
http://aip.metastore.ingenta.com/content/aip/journal/jap/113/17/10.1063/1.4793602
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

AFM images (2 × 2 m) for (a) a bare PET substrate, (b) FeGa(20 nm)/PET, (c) FeGa(50 nm)/PET, and (d) FeGa(50 nm)/Ta(10 nm)/PET films. The color contrast (dark to bright) for the height scale corresponds to 30 nm. (e) RMS roughness versus Ta buffer layer thickness for FeGa(20 nm)/Ta( )/PET and FeGa(50 nm)/Ta( )/PET films.

Image of FIG. 2.
FIG. 2.

Hysteresis loops for flexible FeGa(50 nm)/Ta( )/PET films with a magnetic field applied along (a) the easy (ψ = 0°) and (b) hard (ψ = 90°) axes, and the corresponding angular dependence of (c) squareness and (d) coercive field.

Image of FIG. 3.
FIG. 3.

Hysteresis loops for FeGa(50 nm)/PET taken with magnetic field along the (a) easy and (b) hard axes and FeGa(50 nm)/Ta(10 nm)/PET with magnetic field along the (c) easy and (d) hard axes under compressive and tensile strains.

Image of FIG. 4.
FIG. 4.

Summary for the strain dependence of and / with applied along the easy and hard axes in (a) FeGa(50 nm)/PET and (b) FeGa(50 nm)/Ta(10 nm)/PET films. (c) Using the modified Stoner-Wohlfarth model and the anisotropy geometry in the inset of (a), the / of hysteresis loops for FeGa(50 nm)/PET (red lines) and FeGa(50 nm)/Ta(10 nm)/PET (blue lines) as a function of the strain-induced uniaxial anisotropy / can be calculated. (d) Using this simulation definition, the experimental results can be accordingly revised to the squareness as a function of /.

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/content/aip/journal/jap/113/17/10.1063/1.4793602
2013-02-27
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Effect of buffer layer and external stress on magnetic properties of flexible FeGa films
http://aip.metastore.ingenta.com/content/aip/journal/jap/113/17/10.1063/1.4793602
10.1063/1.4793602
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