Preparation and characterization of high aspect ratio electrodeposited CoPt multilayered magnetic nanowires

被引：5

作者：

Hasan, Md. Mahmudul ^{[1
]}

Huang, Tongshuang ^{[2
]}

Saito, Mikiko ^{[1
]}

Takamura, Yota ^{[2
]}

Oshima, Daiki ^{[3
]}

Kato, Takeshi ^{[3
,4
]}

Homma, Takayuki ^{[1
,5
]}

机构：

[1] Waseda Univ, Res Org Nano & Life Innovat, Tokyo, Tokyo 1620041, Japan

[2] Tokyo Inst Technol, Dept Elect & Elect Eng, 2-12-1 Ookayama,Meguro Ku, Tokyo 1528552, Japan

[3] Nagoya Univ, Dept Elect, Furo Cho,Chikusa Ku, Nagoya, Aichi 4648603, Japan

[4] Nagoya Univ, Inst Mat & Syst Sustainabil, Furo Cho,Chikusa Ku, Nagoya, Aichi 4648603, Japan

[5] Waseda Univ, Dept Appl Chem, 3-4-1 Okubo,Shinjuku Ku, Tokyo 1698555, Japan

来源：

2023 IEEE INTERNATIONAL MAGNETIC CONFERENCE, INTERMAG | 2023年

关键词：

Cobalt-Platinum alloy; electrodeposition; ferromagnetic materials; magnetic anisotropy; multilayered nanowires; NANODOT ARRAYS;

D O I：

10.1109/INTERMAG50591.2023.10265078

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

High aspect ratio CoPt multilayered alloy nanowires were prepared by low-cost electrodeposition technique utilizing polycarbonate template membrane (PT). The nanoholes with a 100 nm diameter of the PT were filled with CoPt multilayered alloy to generate nanowires while the potential was varied to modulate the composition of CoPt alloy. The obtained CoPt multilayered nanowires had a bamboo-like periodic structure with a relative chemical composition of [Co80Pt20/Co30Pt70](n). Magnetic and structural properties of multilayered nanowires have been evaluated. A single Co-rich alloy (relative composition of Co80Pt20) nanowire was also fabricated and exhibited ferromagnetic properties. The CoPt multilayered nanowires demonstrated improvement in magnetic anisotropy compared to the singlelayered Co-rich alloy nanowires. The developed technique and multilayered nanowires can be used for emerging three-dimensional magnetic domain wall memory.

引用

页数：5

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