Advertisement

Journal of Materials Science

, Volume 42, Issue 15, pp 6464–6468 | Cite as

Synthesis, structure, and room-temperature ferromagnetism of Ni-doped ZnO nanoparticles

  • G. J. Huang
  • J. B. Wang
  • X. L. Zhong
  • G. C. Zhou
  • H. L. Yan
Article

Abstract

In this paper, Ni-doped ZnO (Zn1−xNixO, in which 0 ≤ x ≤ 0.05) diluted magnetic semiconductors nanoparticles are prepared by an ultrasonic assisted sol–gel process. Transmission electron microscopy shows sphere-like nanoparticles with an average size of about 25 nm. From the analysis of X-ray diffraction, the Ni-doped ZnO nanoparticles are identified to be a wurtzite structure, but impurity phases are observed when the Ni content x reaches 0.05. Sample structures are further studied by Raman spectra, from which a broad and strong Raman band in the range of 500–600 cm−1 is observed in Zn1−xNixO. With the increment of x, wurtzite structures degrade gradually. The magnetic properties are measured using superconducting quantum interference device at room temperature; the Zn1−xNixO (x ≤ 0.02) nanoparticles show ferromagnetism. However, for the sample of Zn0.95Ni0.05O, paramagnetism is observed, which may be ascribed to ferromagnetic–antiferromagnetic competition.

Keywords

Pulse Laser Deposition Wurtzite Structure Dodecylamine Zinc Nickel Strong Raman Mode 

Notes

Acknowledgements

This work was financially supported by the Hunan Provincial Natural Science Foundation of China (No. 05JJ30126), the Scientific Research Fund of Hunan Provincial Education Department (No. 04B061), the Key Laboratory of Low Dimensional Materials & Application Technology (Xiangtan University), Ministry of Education (No. KF0506), and the Fund of Xiangtan University (05IND10).

Referrences

  1. 1.
    Jeong YH, Han S-J, Park J-H, Lee YH (2004) J Magn Magn Mater 272–276:1976Google Scholar
  2. 2.
    Dietl T, Ohno H, Matsukura F, Cibert J, Ferrand D (2000) Science 287:1019CrossRefGoogle Scholar
  3. 3.
    Sluiter MHF, Kawazoe Y, Sharma P, Inoue A, Raju AR, Rout C, Waghmare UV (2005) Phys Rev Lett 94:187204CrossRefGoogle Scholar
  4. 4.
    Liu XX, Lin FT, Sun LL, Cheng WJ, Ma XM, Shi WZ (2006) Appl Phys Lett 88:062508CrossRefGoogle Scholar
  5. 5.
    Wakano T, Fujimura N, Morinaga Y, Abe N, Ashida A, Ito T (2001) Physica C 10:260Google Scholar
  6. 6.
    Yin Z, Chen N, Yang F, Song S, Chai C, Zhong J, Qian H, Ibrahim K (2005) Solid State Commun 135:430CrossRefGoogle Scholar
  7. 7.
    Coey JMD (2005) J Appl Phys 97:10D313CrossRefGoogle Scholar
  8. 8.
    Martinez AI, Acosta DR (2005) Thin Solid Films 483:107CrossRefGoogle Scholar
  9. 9.
    Kima YM, Yoona M, Parka I-W, Parkb YJ, Lyou JH (2004) Solid State Commun 129:175CrossRefGoogle Scholar
  10. 10.
    Norberg NS, Kittilstved KR, Amonette JE, Kukkadapu RK, Schwartz DA, Gamelin DR (2004) J Am Chem Soc 126:9387CrossRefGoogle Scholar
  11. 11.
    Schwartz DA, Norberg NS, Nguyen QP, Parker JM, Gamelin DR (2003) J Am Chem Soc 125:13205CrossRefGoogle Scholar
  12. 12.
    Yin Z, Chen N, Yang F, Song S, Chai C, Zhong J, Qian H, Ibrahim K (2005) Solid State Commun 135:430CrossRefGoogle Scholar
  13. 13.
    Calleja JM, Cardona M (1977) Phys Rev B 16:3753CrossRefGoogle Scholar
  14. 14.
    Chartier A, Arco PD, Dovesi R, Saunders VR (1999) Phys Rev B 60:14042CrossRefGoogle Scholar
  15. 15.
    Coey JMD, Venkatesan M, Fitzgerald CB (2005) Nat Mater 4:173CrossRefGoogle Scholar
  16. 16.
    Pearton SJ, Norton DP, Ip K, Heo YW, Steiner T (2005) Progr Mater Sci 50:293CrossRefGoogle Scholar
  17. 17.
    Venkatesan M, Fitzgerald CB, Coey JMD (2004) Nature 430:630CrossRefGoogle Scholar
  18. 18.
    Eriksson O, Bergqvist L, Sanyal B, Kudnovsky J, Drchal V, Korzhavyi P, Turek I (2004) J Phys Condens Matter 16:S5481CrossRefGoogle Scholar
  19. 19.
    Jayaram V, Rani BS (2001) Mater Sci Eng A 304:800CrossRefGoogle Scholar
  20. 20.
    Wang JB, Huang GJ, Zhong XL, Sun LZ, Zhou YC, Liu EH (2006) Appl Phys Lett 88:252502CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • G. J. Huang
    • 1
  • J. B. Wang
    • 1
  • X. L. Zhong
    • 1
  • G. C. Zhou
    • 1
  • H. L. Yan
    • 1
  1. 1.Key Laboratory for Low Dimensional Materials & Application Technology of Ministry of EducationInstitute of Modern Physics, Xiangtan UniversityXiangtanChina

Personalised recommendations