Saturation magnetic properties of Y3−x Re x Fe5O12(Re: Gd, Dy, Nd, Sm and La) nanoparticles grown by a sol–gel method

  • Zhongjun Cheng
  • Hua Yang
  • Lianxiang Yu
  • Wei Xu


Re3+-substituted garnet nanoparticles Y3−x Re x Fe5O12 (Re = Gd, Dy, Nd, Sm and La) were fabricated by a sol–gel method .The XRD patterns of all samples have only peaks of the garnet structure and the sizes of nanoparticles rang from 34 to 69 nm. Results of VSM show that the saturation magnetization of Y3−x Gd x Fe5O12, Y3−x Dy x Fe5O12 and Y3−x Sm x Fe5O12 nanoparticles decrease evidently as the Re3+ concentration (x) is increased. The saturation magnetization of Y3−x Nd x Fe5O12 and Y3−x La x Fe5O12 increases firstly and then decreases as the Re3+ concentration (x) is increased. In the meanwhile, it is observed that may be due to the enhancement of the surface spin effects, the saturation magnetization rises as the nanoparticle size is increased.


Saturation Magnetization Yttrium Iron Garnet Effective Magnetic Moment LaFeO3 YFeO3 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



This work is supported by National Natural Science Foundation of China (NSFC) (Grant No. 50572033).


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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Zhongjun Cheng
    • 1
  • Hua Yang
    • 1
  • Lianxiang Yu
    • 1
  • Wei Xu
    • 2
  1. 1.College of ChemistryJilin UniversityChangchunP.R. China
  2. 2.State Key Laboratory of Inorganic Synthesis and Preparative ChemistryJilin UniversityChangchunP.R. China

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