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R. Valenzuela, F. Herbst and S. Ammar, “Ferromagnetic Resonance in NiZn Ferrite Nanoparticles in Different Aggregation States,” Journal of Magnetism and Magnetic Materials, 2012, In Press. doi:10.1016/j.jmmm.2012.02.051

has been cited by the following article:

• TITLE: Microstructure and Microwave Absorption Properties of Y-Substituted Ni-Zn Ferrites

  AUTHORS: Na Chen, Mingyuan Gu

  KEYWORDS: Nick-Zinc Ferrite; Sol-Gel Preparation; Magnetic Properties; Microwave Absorption

  JOURNAL NAME: Open Journal of Metal, Vol.2 No.2, June 26, 2012

  ABSTRACT: The Yttrium ions substituted Ni-Zn ferrites powders were prepared using a sol-gel technique. The crystal structure, magnetic properties and microwave absorption properties of the Ni-Zn ferrites powders were studied by X-ray diffraction, vibrating sample magnetometer and vector network analyzer. The results show that the microwave absorption properties of the Ni-Zn ferrites can be improved effectively with the substitution of Y ions. The minimum reflection loss of the Yttrium ions substituted Ni-Zn powder reaches –34.8 dB, with the –20 dB bandwidth over 2 GHz. The Yttrium substitution can improve microwave absorption properties of Ni-Zn ferrite due to smaller grain dimension and the higher specific magnetization