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Nanoscale characterization of FeNi alloys processed by high-pressure torsion using photoelectron emission microscope
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10.1063/1.4824372
/content/aip/journal/jap/114/14/10.1063/1.4824372
http://aip.metastore.ingenta.com/content/aip/journal/jap/114/14/10.1063/1.4824372
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Schematic illustration of the observed position. It is located at about 2 mm away from the disc center (open circle). (b) Fe magnetic domain image of HPT-FeNi alloy with a field-of-view (FoV) of 30 m. In (c)–(g), the region enclosed with open circle in (b) is zoomed in (FoV: 5 m). (c)and (e) ((d) and (f)) are magnetic domain and elemental distribution images of Fe (Ni), respectively. In the elemental distribution images, the tone displays that the corresponding element is enriched (depleted) in the white (black) region. (g) Surface morphology image by LEEM mode. Islands or defects are indicated by solid rectangles. Magnetic domains derived from (c) or (d) are overlaid by closed dotted lines.

Image of FIG. 2.
FIG. 2.

Similar images to Fig. 1 but obtained at about 1 mm away from the disc center. (a) Schematic illustration of the observed position. (b) Fe magnetic domain images with FoV of 30 m. In (c)–(e), the region enclosed with open circle in (b) is zoomed in (FoV: 5 m). (c) and (e) ((d) and (f)) Magnetic domain and elemental distribution image of Fe (Ni), respectively. (g) Surface morphology image.

Image of FIG. 3.
FIG. 3.

(a) Fe magnetic domain image which is the copy of Fig. 2(c) . (b) and (c) XAS spectra measured at Fe and Ni -edge, respectively. The enlarged views of the spectra (×3) around peak maximum are shown together. The labels “ to “ correspond to those in (a), and they mean the area (rectangles in (a)) where XAS spectra are extracted. The spectra are normalized at post- -edge.

Image of FIG. 4.
FIG. 4.

Magnetic domain and elemental distribution images of as-HPT FeNi alloy measured at Fe and Ni absorption edges. (a) and (c) ((b) and (d)) are magnetic domain and elemental distribution images of Fe (Ni), respectively. The black lines derived from elemental distribution images are guides for distinction. The observed position on the sample is a few mm away from the disc center.

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/content/aip/journal/jap/114/14/10.1063/1.4824372
2013-10-10
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Nanoscale characterization of FeNi alloys processed by high-pressure torsion using photoelectron emission microscope
http://aip.metastore.ingenta.com/content/aip/journal/jap/114/14/10.1063/1.4824372
10.1063/1.4824372
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