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a b s t r a c tFe 1−x Co x nanowires in self-assembled arrays with varying compositions were produced by the templateassisted 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 m in length and 50 nm in diameter. The results of X-ray diffraction indicated that the body-centered-cubic (bcc) (␣), face-centered-cubic (fcc) (␥), 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 Fe 1−x Co x changed with their compositions, which may be attributable to shape anisotropy. The room temperature 57 Fe Mössbauer spectra of the arrays of the Fe 1−x Co x nanowires revealed strong shape anisotropy.

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