Nano Archive

Electrodeposition of nano-grain sized Bi-Co thin films in organic bath and their magnetism

Li, Gao-Ren and Ke, Qing-Fang and Liu, Guan-Kun and Liu, Peng and Tong, Ye-Xiang (2007) Electrodeposition of nano-grain sized Bi-Co thin films in organic bath and their magnetism. Materials Letters, 61 (3). 884 - 888.

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Official URL: http://www.sciencedirect.com/science/article/B6TX9...

Abstract

In this paper we report the preparation of nano-grain sized Bi1−xCox thin films containing different percentages of bismuth and cobalt by galvanostatic electrodeposition on Cu substrates in organic baths, and provided a good procedure to prepare nano-grain sized Bi-based alloy thin films. The prepared Bi1−xCox thin films consisted almost entirely of nanograins with sizes of 20–80 nm, and they were very compact. The results of X-ray diffraction (XRD) indicated that the nano-grain sized Bi1−xCox thin films were amorphous. After heat treatment of crystallization at 280 °C for 1 h in a protecting atmosphere, Bi(110), Cu(111), Bi10Co16O36(532), Co(102) and Co(110) phases could be found in XRD patterns, respectively. The magnetic measurements showed that the nano-grain sized Bi1−xCox thin films had a superparamagnetism-like behavior with the magnetization increasing rapidly and then reaching saturation, and a clear enlargement of deposit coercivity was obtained by increasing Co content.

Item Type:Article
Uncontrolled Keywords:Bismuth; Organic bath; Electrodeposition; Alloy; Nano-grain; Magnetism
Subjects:Material Science > Nanofabrication processes and tools
Physical Science > Nanomagnetics
Material Science > Nanostructured materials
ID Code:6754
Deposited By:SPI
Deposited On:09 Feb 2010 09:25
Last Modified:09 Feb 2010 09:25

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