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Magnetic domain formation within patterned NiFe/Cu/Co ellipses
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10.1063/1.3073662
/content/aip/journal/jap/105/7/10.1063/1.3073662
http://aip.metastore.ingenta.com/content/aip/journal/jap/105/7/10.1063/1.3073662
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Left side shows SEM image of patterned multilayer sample. Ellipses are with periodicities of 900 and 450 nm, respectively. Right side shows the easy (magnetic field along ) and hard (magnetic field along ) magnetic hysteresis loops at room temperature.

Image of FIG. 2.
FIG. 2.

Top panel shows diffuse scattering transformed into reciprocal space. Specular ridge and periodic Bragg peaks corresponding to a spacing of 900 nm are clearly visible. Bottom panel displays the summation of as a function of at saturation (153 mT) and remanence (2.5 mT). Differences in diffuse scattering are the result of magnetic domain formation upon relaxation.

Image of FIG. 3.
FIG. 3.

Differences between high and low magnetic fields applied along the hard (short ellipse) axis are shown. The extracted magnetic scattering profiles are scaled as indicated in the inset for ease of comparison. It is clear that their shape distribution is invariant with applied field. Experimental uncertainty can be inferred from the smoothness of the curves.

Image of FIG. 4.
FIG. 4.

Modeling the diffuse magnetic scattering. Scattering from uniform magnetic ellipses (commensurate with nuclear structure) is too tightly peaked at low-. Conversely, dividing these magnetic ellipses into two equal halves with a boundary perpendicular to the long ellipse axis produces scattering over extended in . A good fit is obtained from a uniform magnetic ellipse as shown by the solid line.

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/content/aip/journal/jap/105/7/10.1063/1.3073662
2009-03-17
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Magnetic domain formation within patterned NiFe/Cu/Co ellipses
http://aip.metastore.ingenta.com/content/aip/journal/jap/105/7/10.1063/1.3073662
10.1063/1.3073662
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