High Energy Product Developed from Cobalt Nanowires

被引：141

作者：

Gandha, Kinjal ^{[1
]}

Elkins, Kevin ^{[1
]}

Poudyal, Narayan ^{[1
]}

Liu, Xubo ^{[1
]}

Liu, J. Ping ^{[1
]}

机构：

[1] Univ Texas Arlington, Dept Phys, Arlington, TX 76019 USA

来源：

SCIENTIFIC REPORTS | 2014年 / 4卷

关键词：

MAGNETIC-PROPERTIES; CO; NANORODS;

D O I：

10.1038/srep05345

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Cobalt nanowires with high aspect ratio have been synthesized via a solvothermal chemical process. Based on the shape anisotropy and orientation of the nanowire assemblies, a record high room-temperature coercivity of 10.6 kOe has been measured in Co nanowires with a diameter of about 15 nm and a mean length of 200 nm. As a result, energy product of the wires reaches 44 MGOe. It is discovered that the morphology uniformity of the nanowires is the key to achieving the high coercivity and high energy density. Nanowires of this type are ideal building blocks for future bonded, consolidated and thin film magnets with high energy density and high thermal stability.

引用

页数：5

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