Journal
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Volume 471, Issue -, Pages 346-354Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jmmm.2018.09.101
Keywords
Fe/TiO2 core/shell nanowire array; Template-based preparation; Annealing; Magnetic property; Microwave-absorption property
Funding
- National Natural Science Foundation of China [21203248]
- Research Project of National University of Defense Technology [JC14-01-03]
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To overcome the problems of Fe nanowires and obtain an outstanding material for the applications of magnetic recording and microwave absorption. Fe/TiO2 core/shell nanowire arrays were fabricated by a controllable twostep electrodeposition technique using anodic aluminum oxide (AAO) membrane as the template. The influences of annealing on the microstructure, magnetism and microwave-absorption properties of the arrays were studied. It was demonstrated experimentally that the partial crystallization of amorphous TiO2 and the polycrystalline structure of TiO2 originating from annealing enhanced the microwave-absorption properties of Fe/TiO2 core/shell nanowire arrays. We also found that the nanowire arrays with small diameter exhibited more obvious magnetic anisotropy. Our study shows that Fe/TiO2 core/shell nanowire arrays can be used for the applications of magnetic recording and microwave absorption.
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