title: A novel method to fabricate CoFe2O4/SrFe12O19 composite ferrite nanofibers with enhanced exchange coupling effect.
abstract: Nanocomposite of CoFe2O4/SrFe12O19 has been synthesized by the electrospinning and calcination process. A novel method that cobalt powder was used to replace traditional cobalt salt in the precursor sol-gel for electrospinning was proposed. The crystal structures, morphologies, and magnetic properties of these samples have been characterized in detail. Moreover, when the average crystallite size of the hard/soft phases reached up to an optimal value, the CoFe2O4 have an enhanced saturation magnetization of 62.8 emu/g and a coercivity of 2,290 Oe. Significantly, the hysteresis loops for the nanocomposites show a single-phase magnetization behavior, and it has been found that the exchange coupling interaction strongly exists in the CoFe2O4/SrFe12O19 magnetic nanocomposite nanofibers.
authors: Key Laboratory for Magnetic and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou, 730000 People's Republic of China.
authors: Lining
authors: L
authors: Pan
authors: Key Laboratory for Magnetic and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou, 730000 People's Republic of China.
authors: Derang
authors: D
authors: Cao
authors: Key Laboratory for Magnetic and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou, 730000 People's Republic of China.
authors: Panpan
authors: P
authors: Jing
authors: Key Laboratory for Magnetic and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou, 730000 People's Republic of China.
authors: Jianbo
authors: J
authors: Wang
authors: Key Laboratory for Magnetic and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou, 730000 People's Republic of China.
authors: Qingfang
authors: Q
authors: Liu
keywords: CoFe2O4/SrFe12O19 nanocomposite nanofibers; Cobalt powder; Crystallite size; Exchange coupling interaction