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J. Appl. Phys. 107, 083919 (2010); http://dx.doi.org/10.1063/1.3374468 (3 pages)

Magnetic properties of nickel hydroxide nanoparticles

X. H. Liu1, W. Liu1,2, X. K. Lv1, F. Yang1, X. Wei2, Z. D. Zhang1, and D. J. Sellmyer2

1Shenyang National Laboratory for Materials Science, Institute of Metal Research and International Center for Materials Physics, Chinese Academy of Sciences, Shenyang 110016, People’s Republic of China
2Department of Physics and Astronomy and Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, USA

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(Received 1 March 2010; accepted 3 March 2010; published online 29 April 2010)

The magnetic properties of 10 nm size Ni(OH)2 nanoparticles prepared by sol-gel method have been studied. The magnetic moments increase with decreasing temperature in a low applied field, which is due to the spin-frozen-like state at low temperatures, and the metamagnetic transition is not clearly observed even in an applied field of 70 kOe due to the size effect. Furthermore, the transition from paramagnetic to antiferromagnetic in the Ni(OH)2 nanoparticles occurs at lower temperature (22 K).

© 2010 American Institute of Physics

Article Outline

  1. INTRODUCTION
  2. EXPERIMENT
  3. RESULTS AND DISCUSSION
  4. CONCLUSION

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KEYWORDS and PACS

PACS

  • 75.75.Cd

    Fabrication of magnetic nanostructures

  • 81.07.Wx

    Nanopowders

  • 75.50.Tt

    Fine-particle systems; nanocrystalline materials

  • 75.30.Kz

    Magnetic phase boundaries (including classical and quantum magnetic transitions, metamagnetism, etc.)

  • 75.25.-j

    Spin arrangements in magnetically ordered materials (including neutron and spin-polarized electron studies, synchrotron-source x-ray scattering, etc.)

  • 75.30.Cr

    Saturation moments and magnetic susceptibilities

ARTICLE DATA

PUBLICATION DATA

ISSN

0021-8979 (print)  
1089-7550 (online)

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