Nano Archive

Tunable Magnetic Properties of Heterogeneous Nanobrush: From Nanowire to Nanofilm

Ren, Y. and Dai, Y. Y. and Zhang, B. and Liu, Q. F. and Xue, D. S. and Wang, J. B. (2010) Tunable Magnetic Properties of Heterogeneous Nanobrush: From Nanowire to Nanofilm. Nanoscale Research Letters, 5 (5). pp. 853-858.

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Abstract

With a bottom-up assemble technology, heterogeneous magnetic nanobrushes, consisting of Co nanowire arrays and ferromagnetic Fe70Co30 nanofilm, have been fabricated using an anodic aluminum oxide template method combining with sputtering technology. Magnetic measurement suggests that the magnetic anisotropy of nanobrush depends on the thickness of Fe70Co30 layer, and its total anisotropy originates from the competition between the shape anisotropy of nanowire arrays and nanofilm. Micromagnetic simulation result indicates that the switching field of nanobrush is 1900 Oe, while that of nanowire array is 2700 Oe. These suggest that the nanobrush film can promote the magnetization reversal processes of nanowire arrays in nanobrush.

Item Type:Article
Uncontrolled Keywords:Nanobrush Anisotropy Micromagnetic simulation
Subjects:Physical Science > Nano objects
Physical Science > Nanomagnetics
ID Code:9002
Deposited By:Lesley Tobin
Deposited On:28 Sep 2010 12:32
Last Modified:28 Sep 2010 12:32

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