Synthesis and characterization of Fe - FeOx core-shell nanowires

Ju Hun Lee; Jun Hua Wu; Ji Sung Lee; Ki Seok Jeon; Hae Ryong Kim; Jong Heun Lee; Yung Doug Suh; Young-geun Kim

doi:10.1109/TMAG.2008.2001515

Synthesis and characterization of Fe - FeO_x core-shell nanowires

Ju Hun Lee, Jun Hua Wu, Ji Sung Lee, Ki Seok Jeon, Hae Ryong Kim, Jong Heun Lee, Yung Doug Suh, Young-geun Kim

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

We report the synthesis and characterization of Fe - FeO_x 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 - FeO_x 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.

Original language	English
Pages (from-to)	3950-3953
Number of pages	4
Journal	IEEE Transactions on Magnetics
Volume	44
Issue number	11 PART 2
DOIs	https://doi.org/10.1109/TMAG.2008.2001515
Publication status	Published - 2008 Nov

Keywords

Core-shell nanowires
Iron
Iron oxide
Nano-Raman
Nanostructure

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

Access to Document

10.1109/TMAG.2008.2001515

Cite this

@article{3748652ba93a464aa2d1d7f68c54fb43,

title = "Synthesis and characterization of Fe - FeOx core-shell nanowires",

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.",

keywords = "Core-shell nanowires, Iron, Iron oxide, Nano-Raman, Nanostructure",

author = "Lee, {Ju Hun} and Wu, {Jun Hua} and Lee, {Ji Sung} and Jeon, {Ki Seok} and Kim, {Hae Ryong} and Lee, {Jong Heun} and Suh, {Yung Doug} and Young-geun Kim",

note = "Funding Information: This work was supported in part by the Korea Science and Engineering Foundation through the Pioneer Converging Technology Program, by National Research Lab Program (M10500000105-05J0000-10510), by the Seoul R&BD Program (10920), and by the Korea University Grant (T0801161). The work of J. H. Lee was supported by the KOSEF NRL Program (R0A-2008-000-20032-0).",

year = "2008",

month = nov,

doi = "10.1109/TMAG.2008.2001515",

language = "English",

volume = "44",

pages = "3950--3953",

journal = "IEEE Transactions on Magnetics",

issn = "0018-9464",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "11 PART 2",

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TY - JOUR

T1 - Synthesis and characterization of Fe - FeOx core-shell nanowires

AU - Lee, Ju Hun

AU - Wu, Jun Hua

AU - Lee, Ji Sung

AU - Jeon, Ki Seok

AU - Kim, Hae Ryong

AU - Lee, Jong Heun

AU - Suh, Yung Doug

AU - Kim, Young-geun

N1 - Funding Information: This work was supported in part by the Korea Science and Engineering Foundation through the Pioneer Converging Technology Program, by National Research Lab Program (M10500000105-05J0000-10510), by the Seoul R&BD Program (10920), and by the Korea University Grant (T0801161). The work of J. H. Lee was supported by the KOSEF NRL Program (R0A-2008-000-20032-0).

PY - 2008/11

Y1 - 2008/11

N2 - 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.

AB - 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.

KW - Core-shell nanowires

KW - Iron

KW - Iron oxide

KW - Nano-Raman

KW - Nanostructure

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DO - 10.1109/TMAG.2008.2001515

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SN - 0018-9464

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EP - 3953

JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

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