Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 631, Issue -, Pages 335-339Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2015.01.012
Keywords
Composite materials; Magnetization; Sol-gel processes; Magnetic measurements
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Funding
- National Natural Science Foundation of China [51342004]
- Science and Technology Foundation of Shaanxi Province [2013KJXX79, 2013JQ6004]
- Scientific Research Starting Foundation of Shaanxi University of Science and Technology [BJ11-03]
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Homogeneous BaFe12O19/CoFe2O4 hard/soft magnetic nanocomposite powders were prepared by a one-step sol-gel method. All the nanocomposite powders show single-phase-like magnetic hysteresis loops indicating the existence of the excellent exchange spring phenomena of the hard magnetic phase and soft magnetic phase in the nanocomposite powders. The enhancements of remanence and 10% in (BH)(max) compared with the parent hard ferrite (BaFe12O19) can be achieved. The switching field distribution curves confirm the excellent exchange coupling between the hard and soft magnetic grains. (C) 2015 Elsevier B.V. All rights reserved.
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