Three-dimensional shapes and distribution of FePd nanoparticles observed by electron tomography using high-angle annular dark-field scanning transmission electron microscopy

Sato, Kazuhisa; Aoyagi, Kenta; Konno, Toyohiko J.

Journal of Applied Physics, 2010, 107(2), 024304

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Identifier to cite or link to this item: https://hdl.handle.net/11094/89402

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Title
Three-dimensional shapes and distribution of FePd nanoparticles observed by electron tomography using high-angle annular dark-field scanning transmission electron microscopy
Creator
NRID
1000070314424 1000070314424
ORCID
0000-0001-9078-2541 0000-0001-9078-2541
researchmap permalink
read0158304 read0158304
Scopus Author ID
55552977400 55552977400
CreatorName
Sato, Kazuhisa
NRID
1000090636044 1000090636044
CreatorName
Aoyagi, Kenta
NRID
1000090260447 1000090260447
CreatorName
Konno, Toyohiko J.
Description
Kazuhisa Sato, Kenta Aoyagi, and Toyohiko J. Konno, "Three-dimensional shapes and distribution of FePd nanoparticles observed by electron tomography using high-angle annular dark-field scanning transmission electron microscopy", Journal of Applied Physics 107, 024304 (2010) https://doi.org/10.1063/1.3280026.
Abstract
We have studied three-dimensional shapes and distribution of FePd nanoparticles, prepared by electron beam deposition and postdeposition annealing, by means of single-axis tilt tomography using atomic number contrasts obtained by high-angle annular dark-field scanning transmission electron microscopy. Particle size, shape, and locations were reconstructed by weighted backprojection (WBP), as well as by simultaneous iterative reconstruction technique (SIRT). We have also estimated the particle size by simple extrapolation of tilt-series original data sets, which proved to be quite powerful. The results of the two algorithms for reconstruction have been compared quantitatively with those obtained by the extrapolation method and those independently reported by electron holography. It was found that the reconstructed intensity map by WBP contains a small amount of dotlike artifacts, which do not exist in the results by SIRT, and that the particle surface obtained by WBP is rougher than that by SIRT. We demonstrate, on the other hand, that WBP yields a better estimation of the particle size in the z direction than SIRT does, most likely due to the presence of a "missing wedge" in the original data set. © 2010 American Institute of Physics.
Publisher
American Institute of Physics
Source Title
Journal of Applied Physics
Volume (Issue)
107(2)
Page
024304
Date of Issued
2010-01-15
Language
English
Handle URL
https://hdl.handle.net/11094/89402
PISSN
00218979
NCID
AA00693547
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1063/1.3280026
Access Rights
open access
CopyRight
This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Kazuhisa Sato, Kenta Aoyagi, and Toyohiko J. Konno, "Three-dimensional shapes and distribution of FePd nanoparticles observed by electron tomography using high-angle annular dark-field scanning transmission electron microscopy", Journal of Applied Physics 107, 024304 (2010) and may be found at https://doi.org/10.1063/1.3280026.
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Category
学術雑誌論文 Journal Article