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Effect of Zn substitution on morphology and magnetic properties of CuFe_2O_4 nanofibers

机译：锌替代对CuFe_2O_4纳米纤维形貌和磁性的影响

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摘要

Cu_(1-x)Zn_xFe_2O_4 (0 ≤ x ≤ 1) nanofibers with continuous and fibrous morphology have been prepared by electrospinning combined with sol-gel method. The effect of Zn substitution on structure, morphology and magnetic properties were studied extensively. Scanning electron microscope and transmission electron microscope results reveal that Zn substitution strongly improves the poor morphology of the CuFe_2O_4 nanofibers. It was found that with increasing Zn content, the saturation magnetization initially increases and then decreases with a maximum value of 58.4 emu g~(-1) at x = 0.4, whereas the coercivity and square ratio decrease monotonously. Interestingly, the magnetic easy axis of the Cu_(0.6)Zn_(0.4)Fe_2O_4 nanofibers is not totally along the long axis of the nanofibers, which might due to the loosely connected nanoparticles and/or the dipolar interactions between these nanofibers.
机译：通过电纺结合溶胶-凝胶法制备了具有连续和纤维形态的Cu_（1-x）Zn_xFe_2O_4（0≤x≤1）纳米纤维。广泛研究了锌取代对结构，形态和磁性能的影响。扫描电子显微镜和透射电子显微镜的结果表明，Zn的替代可以大大改善CuFe_2O_4纳米纤维的不良形貌。发现随着Zn含量的增加，饱和磁化强度先增大然后减小，在x = 0.4时最大值为58.4 emu g〜（-1），而矫顽力和平方比单调减小。有趣的是，Cu_（0.6）Zn_（0.4）Fe_2O_4纳米纤维的易磁化轴并不完全沿着纳米纤维的长轴，这可能是由于纳米粒子之间的松散连接和/或这些纳米纤维之间的偶极相互作用。

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  • 来源
    《Materials Chemistry and Physics》 |2012年第3期|1097-1101|共5页
  • 作者

    Weiwei Pan; Fengmei Gu; Kuo Qi; Qingfang Liu; Jianbo Wang;

  • 作者单位

    Institute of Applied Magnetics, Key Laboratory of Magnetism and Magnetic Materials of Ministry of Education, Lanzhou University, Lanzhou 730000, PR China;

    Institute of Applied Magnetics, Key Laboratory of Magnetism and Magnetic Materials of Ministry of Education, Lanzhou University, Lanzhou 730000, PR China;

    Institute of Applied Magnetics, Key Laboratory of Magnetism and Magnetic Materials of Ministry of Education, Lanzhou University, Lanzhou 730000, PR China;

    Institute of Applied Magnetics, Key Laboratory of Magnetism and Magnetic Materials of Ministry of Education, Lanzhou University, Lanzhou 730000, PR China;

    Institute of Applied Magnetics, Key Laboratory of Magnetism and Magnetic Materials of Ministry of Education, Lanzhou University, Lanzhou 730000, PR China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    ceramics; nanostructures; surfaces; magnetic properties;

    机译：陶瓷;纳米结构表面;磁性;

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