Electrochemical synthesis of magnetostrictive Fe-Ga/Cu multilayered nanowire arrays with tailored magnetic response

Sai Madhukar Reddy; Jung Jin Park; Suok Min Na; Mazin M. Maqableh; Alison B. Flatau; Bethanie J.H. Stadler

doi:10.1002/adfm.201101390

Electrochemical synthesis of magnetostrictive Fe-Ga/Cu multilayered nanowire arrays with tailored magnetic response

Sai Madhukar Reddy, Jung Jin Park, Suok Min Na, Mazin M. Maqableh, Alison B. Flatau, Bethanie J.H. Stadler

Administration (CSENG)

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Abstract

Arrays of nanowires are fabricated with alternating segments of the magnetostrictive alloy Fe _1-xGa _x and Cu using electrochemical deposition in nanoporous anodic aluminium oxide (AAO) templates. The difficult nature of Ga-alloy electrochemistry is overcome by controlling mass-transfer and hydrodynamic conditions using novel rotating disk electrode templates to obtain highly uniform segment lengths throughout the arrays. Extensive structural characterization by XRD, EBSD and TEM reveals a strong <110> textured Fe _1-xGa _x growth. Furthermore, using vibrating sample magnetometry (VSM), we demonstrate that control of magnetization reversal processes is possible once uniform aspect ratios are obtained for both the Fe-Ga and Cu segments.

Original language	English (US)
Pages (from-to)	4677-4683
Number of pages	7
Journal	Advanced Functional Materials
Volume	21
Issue number	24
DOIs	https://doi.org/10.1002/adfm.201101390
State	Published - Dec 20 2011

Keywords

iron-gallium (Fe-Ga) alloys
magnetic multilayers
magnetic nanowires
magnetic reversal

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abstract = "Arrays of nanowires are fabricated with alternating segments of the magnetostrictive alloy Fe 1-xGa x and Cu using electrochemical deposition in nanoporous anodic aluminium oxide (AAO) templates. The difficult nature of Ga-alloy electrochemistry is overcome by controlling mass-transfer and hydrodynamic conditions using novel rotating disk electrode templates to obtain highly uniform segment lengths throughout the arrays. Extensive structural characterization by XRD, EBSD and TEM reveals a strong <110> textured Fe 1-xGa x growth. Furthermore, using vibrating sample magnetometry (VSM), we demonstrate that control of magnetization reversal processes is possible once uniform aspect ratios are obtained for both the Fe-Ga and Cu segments.",

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AU - Reddy, Sai Madhukar

AU - Park, Jung Jin

AU - Na, Suok Min

AU - Maqableh, Mazin M.

AU - Flatau, Alison B.

AU - Stadler, Bethanie J.H.

PY - 2011/12/20

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AB - Arrays of nanowires are fabricated with alternating segments of the magnetostrictive alloy Fe 1-xGa x and Cu using electrochemical deposition in nanoporous anodic aluminium oxide (AAO) templates. The difficult nature of Ga-alloy electrochemistry is overcome by controlling mass-transfer and hydrodynamic conditions using novel rotating disk electrode templates to obtain highly uniform segment lengths throughout the arrays. Extensive structural characterization by XRD, EBSD and TEM reveals a strong <110> textured Fe 1-xGa x growth. Furthermore, using vibrating sample magnetometry (VSM), we demonstrate that control of magnetization reversal processes is possible once uniform aspect ratios are obtained for both the Fe-Ga and Cu segments.

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Electrochemical synthesis of magnetostrictive Fe-Ga/Cu multilayered nanowire arrays with tailored magnetic response

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