%0 Journal Article
%T Improvement in Structural and Magnetic Properties of Electrospun Ni<sub>1-x</sub>Cu<sub>x</sub>Fe<sub>2</sub>O<sub>4</sub> Nanofibers
%A Weiwei Pan
%A Xinlei Zhang
%A Qin-Fang Liu
%A Jianbo Wang
%J Soft Nanoscience Letters
%P 17-26
%@ 2160-0740
%D 2017
%I Scientific Research Publishing
%R 10.4236/snl.2017.72002
%X <div style=\"text-align:justify;\">
	A series of Ni<sub>1-x</sub>Cu<sub>x</sub>Fe<sub>2</sub>O<sub>4</sub> (0.0 ¡Ü x ¡Ü 1.0) nanofibers have been synthesized employing
electrospinning method at 650¡ãC. The effect of Cu substitution on
structural, morphology and magnetic properties of NiFe<sub>2</sub>O<sub>4</sub> nanofibers is reported.
The XRD analysis showed the formation of single-phase cubic spinel
Ni-Cu ferrite and an increasing behavior of lattice constant. The surface
morphology is characterized by SEM, it is investigated that nanofibers have
uniform and continuous morphology. The VSM results showed Cu substitution
played an important role in magnetic properties of Ni<sub>1-x</sub>Cu<sub>x</sub>Fe<sub>2</sub>O<sub>4</sub>. The
saturation magnetization (<em>M</em><sub>s</sub>) decreases linearly with increasing Cu<sup>2+</sup> content,
while coercivity (<em>H</em><sub>c</sub>) has slowly decreased before x ¡Ü 0.5, and then sharply increased
to 723.9 Oe for x = 1.0. The magnetic properties of Ni<sub>1-x</sub>Cu<sub>x</sub>Fe<sub>2</sub>O<sub>4</sub> can
be explained in Neel¡¯s model, cation distribution and shape anisotropy.
</div>
%K NiCu Ferrite
%K Electrospinning
%K Magnetic Properties
%K Nanostructures
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=80197