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Magnetic properties of isotropic and anisotropic SmCo5/α-Fe nanocomposite magnets with a layered structure simulated by micromagnetic theory


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Title: Magnetic properties of isotropic and anisotropic SmCo5/α-Fe nanocomposite magnets with a layered structure simulated by micromagnetic theory
Authors: Horikawa, Ryo / Fukunaga, Hirotoshi / Nakano, Masaki / Yanai, Takeshi
Issue Date: 7-May-2014
Publisher: American Institute of Physics Publising LLC
Citation: Journal of Applied Physics, 115(17), 17A707; 2014
Abstract: Magnetic properties of anisotropic and isotropic SmCo5/α-Fe nanocomposite magnets with a layered structure were computer-simulated with varying the stacking period, the α-Fe fraction, and temperature. The (BH)max values of approximately 800 and 700 kJ/m3 were achieved for anisotropic magnets at 300 and 473 K, respectively. These values roughly agree with results for SmCo5/α-Fe with a core-shell structure, and the value at 473 K is much higher than that of Nd2Fe14B/α-Fe with a layered structure. For isotropic magnets, the largest H c values were obtained for the stacking periods of approximately 20 and 25 nm at 300 and 473 K, respectively. The achieved (BH)max values were approximately 300 and 250 kJ/m3 at 300 and 473 K, respectively. The behavior of H c was discussed in terms of the ratio of exchange energy to magnetic anisotropy one.
URI: http://hdl.handle.net/10069/34737
ISSN: 00218979
DOI: 10.1063/1.4861558
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/10069/34737

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