Structure and magnetic properties of Fe1−xCox nanowires in self-assembled arrays |
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| Authors: | G.H. Yue X. Wang L.S. Wang P. Chang R.T. Wen Y.Z. Chen D.L. Peng |
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| Affiliation: | aDepartment of Materials Science & Engineering, Research Center of Materials Design & Applications, Xiamen University, Xiamen 361005, People's Republic of China;bSchool of Physical Science & Technology, Lanzhou University, Lanzhou 730000, People's Republic of China |
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| Abstract: | Fe1−xCox nanowires in self-assembled arrays with varying compositions were produced by the template-assisted pulsed electrochemical deposition method. The structural and magnetic properties of the arrays were investigated using several experimental techniques. TEM analyses indicated that the nanowires were regular, uniform, 8 μm in length and 50 nm in diameter. The results of X-ray diffraction indicated that the body-centered-cubic (bcc) (α), face-centered-cubic (fcc) (γ), and hexagonal-close-packed (hcp) ( ) Fe–Co phases appeared in different compositions. Magnetic measurements showed that the coercivity and squareness of the hysteresis loops of the Fe1−xCox changed with their compositions, which may be attributable to shape anisotropy. The room temperature 57Fe Mössbauer spectra of the arrays of the Fe1−xCox nanowires revealed strong shape anisotropy. |
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| Keywords: | Fe1− xCox nanowires Magnetic properties Electrochemical deposition |
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