期刊
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
卷 324, 期 22, 页码 3652-3657出版社
ELSEVIER
DOI: 10.1016/j.jmmm.2012.05.014
关键词
FeCo; Nanoparticle; Organic ligands; Magnetic material
资金
- University of Kashan
- Islamic Azad University (Science and Research Branch of Tehran)
A new way of preparing FeCo nanoparticles has been developed using the co-precipitation technique based on the appropriate Co precursors of different types of ligands. These new precursors have been prepared by the reaction of cobalt acetate with three various coordination compositions for forming cobalt complex types. This technique provides proper control on nanoparticle size distribution after annealing to 500 degrees C. The variation of the magnetic properties with the type of ligands of Co can arise from the changes of the microstructures and crystalline anisotropies. Maximum coercivity values of 480 Oe were obtained. It is found that the precursors with special structures can prevent from agglomeration without presence of any surfactants. (c) 2012 Elsevier B.V. All rights reserved.
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