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Synthesis and Characterization of Fe-FeOx Core-Shell Nanowires

Authors
Lee, Ju HunWu, Jun HuaLee, Ji SungJeon, Ki SeokKim, Hae RyongLee, Jong HeunSuh, Yung DougKim, Young Keun
Issue Date
11월-2008
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Keywords
Core-shell nanowires; iron; iron oxide; nano-Raman; nanostructure
Citation
IEEE TRANSACTIONS ON MAGNETICS, v.44, no.11, pp.3950 - 3953
Indexed
SCIE
SCOPUS
Journal Title
IEEE TRANSACTIONS ON MAGNETICS
Volume
44
Number
11
Start Page
3950
End Page
3953
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/122435
DOI
10.1109/TMAG.2008.2001515
ISSN
0018-9464
Abstract
We report the synthesis and characterization of Fe - FeOx core-shell nanowires by thermal conversion of the Fe nanowires from pulse electrodeposition in anodized aluminum oxide (AAO) nanotemplates under various conditions. Well-defined core-shell nanostructure of the Fe - FeOx nanowires was confirmed by TEM and corresponding elemental line scanning and point scanning. The type of the iron oxide in the shell was identified using nano-Raman spectroscopy, which exposes magnetite to be the major constituent. The magnetic measurements demonstrate that the nanowires are robustly soft magnetic, with the magnetization tunable by heat treatment parameters and a weak magnetic easy direction parallel to the nanowire axis.
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