Magnetic anisotropy evolution in CoFe/Au barcode nanowire arrays

Bum Chul Park; Bong Gun Kim; Hyo Won Seo; Young Keun Kim

doi:10.1109/TMAG.2013.2279278

Magnetic anisotropy evolution in CoFe/Au barcode nanowire arrays

Bum Chul Park, Bong Gun Kim, Hyo Won Seo, Young Keun Kim

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

8 Citations (Scopus)

Abstract

Owing to their multifunctional properties, multisegmented metallic nanowires have generated interest for potential applications in magnetics and biology. In this paper, we present the magnetic properties of Co ₅₀Fe₅₀/Au barcode nanowire arrays with CoFe and Au segments of various diameters and thicknesses. The distinct anisotropic behavior and magnetization reversal process depending upon these geometric factors were investigated. As the diameter increased (50-200 nm), the easy-axis direction changed from parallel (//) to perpendicular (⊥) to the nanowire axis. As the intersegment spacing increased (t_Au = 50 - 200 nm), the easy-axis direction tended to lie in the plane of the nanowires. In addition, we examined the changes in the magnetization reversal modes.

Original language	English
Article number	2279278
Journal	IEEE Transactions on Magnetics
Volume	50
Issue number	1
DOIs	https://doi.org/10.1109/TMAG.2013.2279278
Publication status	Published - 2014 Jan

Keywords

Barcode nanowire
CoFe/Au
Electrodeposition
Magnetic anisotropy

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/TMAG.2013.2279278

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abstract = "Owing to their multifunctional properties, multisegmented metallic nanowires have generated interest for potential applications in magnetics and biology. In this paper, we present the magnetic properties of Co 50Fe50/Au barcode nanowire arrays with CoFe and Au segments of various diameters and thicknesses. The distinct anisotropic behavior and magnetization reversal process depending upon these geometric factors were investigated. As the diameter increased (50-200 nm), the easy-axis direction changed from parallel (//) to perpendicular (⊥) to the nanowire axis. As the intersegment spacing increased (tAu = 50 - 200 nm), the easy-axis direction tended to lie in the plane of the nanowires. In addition, we examined the changes in the magnetization reversal modes.",

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AU - Park, Bum Chul

AU - Kim, Bong Gun

AU - Seo, Hyo Won

AU - Kim, Young Keun

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N2 - Owing to their multifunctional properties, multisegmented metallic nanowires have generated interest for potential applications in magnetics and biology. In this paper, we present the magnetic properties of Co 50Fe50/Au barcode nanowire arrays with CoFe and Au segments of various diameters and thicknesses. The distinct anisotropic behavior and magnetization reversal process depending upon these geometric factors were investigated. As the diameter increased (50-200 nm), the easy-axis direction changed from parallel (//) to perpendicular (⊥) to the nanowire axis. As the intersegment spacing increased (tAu = 50 - 200 nm), the easy-axis direction tended to lie in the plane of the nanowires. In addition, we examined the changes in the magnetization reversal modes.

AB - Owing to their multifunctional properties, multisegmented metallic nanowires have generated interest for potential applications in magnetics and biology. In this paper, we present the magnetic properties of Co 50Fe50/Au barcode nanowire arrays with CoFe and Au segments of various diameters and thicknesses. The distinct anisotropic behavior and magnetization reversal process depending upon these geometric factors were investigated. As the diameter increased (50-200 nm), the easy-axis direction changed from parallel (//) to perpendicular (⊥) to the nanowire axis. As the intersegment spacing increased (tAu = 50 - 200 nm), the easy-axis direction tended to lie in the plane of the nanowires. In addition, we examined the changes in the magnetization reversal modes.

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KW - Magnetic anisotropy

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Magnetic anisotropy evolution in CoFe/Au barcode nanowire arrays

Abstract

Keywords

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