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Microstructure analysis of a SmCo/Fe exchange spring bilayer
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View: Figures


Image of FIG. 1.
FIG. 1.

(a) The bright field image and (b) corresponding SAED pattern of Cr(20 nm)/Sm–Co(20 nm)/Fe(20 nm)/Cr(5 nm). Orange lines: SmCo reflections for the [001]; green lines: Fe/Cr ; white lines: MgO [100] zone axes.

Image of FIG. 2.
FIG. 2.

(a) is the HAADF image with five CBED patterns corresponding to five different areas marked with 1–5. (b) The quantified line scan EDS along the strong black line in (a). (c) The Co/Sm and ratio. The wide black belt is a guide for the eye.

Image of FIG. 3.
FIG. 3.

The HREM image of the multilayers. The lower regions of the Sm:Co layer shown are nearly epitaxial on Cr. The middle to upper parts of the Sm–Co layer shows many boundaries as indicated by the white arrows.

Image of FIG. 4.
FIG. 4.

(a) The atomic schematic of and Fe. Fe will diffuse by the Co channel into to form as shown in (b) after atom arrangement. (c) The CBED patterns from Cr, SmCoFe mixed, and Fe layers from a sample orthogonal to that shown in previous figures. (d) HREM image showing numerous planar defects. The top-left insert is the magnification of the profiled area in this image.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Microstructure analysis of a SmCo/Fe exchange spring bilayer