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Magnetic properties and microstructure of Sm-Co/α-Fe nanocomposite thick film-magnets composed of multi-layers over 700 layers


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Title: Magnetic properties and microstructure of Sm-Co/α-Fe nanocomposite thick film-magnets composed of multi-layers over 700 layers
Authors: Tou, Akinori / Morimura, Takao / Nakano, Masaki / Yanai, Takeshi / Fukunaga, Hirotoshi
Issue Date: 7-May-2014
Publisher: American Institute of Physics Publising LLC
Citation: Journal of Applied Physics, 115(17), 17A748; 2014
Abstract: We synthesized Sm-Co/α-Fe nanocomposite film-magnets, approximately 10μm in thickness, composed of 780 layers by the pulse laser deposition method. Transmission electron microscopic observations revealed that the synthesized film is composed of Sm-Co and α-Fe layers with the well-controlled α-Fe thickness of approximately 10-20 nm, which is suitable one predicted by the micromagnetic simulation. In spite of the enhanced interlayer diffusion of Fe and Co by annealing for crystallization, the (BH)max value of 100 kJ/m3 was obtained at the averaged compositions of Sm/(Sm + Co) = 0.16 and Fe/(Sm + Co + Fe) = 0.47. The α-Fe fraction for obtaining the highest (BH)max value was smaller than that expected from the micromagnetic simulation. Although the annealing for crystallization lay the easy direction of magnetization in the plane, the film is not expected to have strong crystallographic texture.
URI: http://hdl.handle.net/10069/34739
ISSN: 00218979
DOI: 10.1063/1.4866842
Relational Links: http://hdl.handle.net/10069/34740
Rights: © 2014 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
Type: Journal Article
Text Version: publisher
Appears in Collections:Articles in academic journal

Citable URI : http://hdl.handle.net/10069/34739

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