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Electron holography of single-crystal iron nanorods encapsulated in carbon nanotubes
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10.1063/1.2407523
/content/aip/journal/jap/101/1/10.1063/1.2407523
http://aip.metastore.ingenta.com/content/aip/journal/jap/101/1/10.1063/1.2407523
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

XRD spectrum of the CVD products. The symbols of “◻,” “엯,” “⋆,” and “●” represent the presence of , , , and carbon nanotubes, respectively.

Image of FIG. 2.
FIG. 2.

(a) Bright-field TEM image of an Fe-filled multiwall carbon nanotube and (b) EDS spectrum taken from the Fe core.

Image of FIG. 3.
FIG. 3.

(a) HREM image of an -filled multiwall carbon nanotube; (b) the magnified view of the Fe core and carbon nanotube from the marked region in (a); (c) fast Fourier transform pattern taken from the image shown in (a).

Image of FIG. 4.
FIG. 4.

(Color online) (a) Electron hologram of an nanorod encapsulated in a carbon nanotube and [(b) and (c)] mean inner potential and magnetic component retrieved from the measured phase shift.

Image of FIG. 5.
FIG. 5.

(Color online) (a) Illustration of an elliptical cross section of a carbon nanotube containing an nanorod with arbitrary shape and (b) retrieved thickness image of the nanorod using a 3D morphological model described by Eq. (3).

Image of FIG. 6.
FIG. 6.

(Color online) (a) Schematic model for phase calculations. The nanorod is divided into a large number of small magnetic particles with a single magnetic domain; (b) calculated phase distribution of based on the thickness image of Fig. 5(b); [(c) and (d)] three-dimensional images of the calculated and experimental phase distributions of , respectively; and (e) phase profiles across the nanorod from to shown in (c) and (d).

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/content/aip/journal/jap/101/1/10.1063/1.2407523
2007-01-11
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Electron holography of single-crystal iron nanorods encapsulated in carbon nanotubes
http://aip.metastore.ingenta.com/content/aip/journal/jap/101/1/10.1063/1.2407523
10.1063/1.2407523
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