Skip to main content
SpringerLink
Log in

Effect of field cooling on magnetic properties of ultrafine CoO/Co particles

  • Published:
Applied Physics A Aims and scope Submit manuscript

Abstract

In CoO-Ag granular films with small CoO contents, we have observed ultrafine Co particles inside or on the surface of the CoO particles. After field cooling under the external magnetic field of 50 kOe, a sustained magnetization (or vertical) shift and exchange field shift were observed. The magnetization shift and the exchange field shift increased as the cooling field is increased and temperature decreased, in correlation to each other.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. B. Dieny, V.S. Speriosu, S.S.P. Parkin, B.A. Gurney, D.R. Wilhoit, D. Mauri: Phys. Rev. B 43, 1297 (1991); J.C.S. Kools: IEEE Trans. Magn. 32, 3165 (1996)

    Article  ADS  Google Scholar 

  2. See e.g., J. Nogués, I.K. Schuller: J. Magn. Magn. Mater. 192, 203 (1999)

    Article  ADS  Google Scholar 

  3. See e.g., A.E. Berkowitz, K. Takano: J. Magn. Magn. Mater. 200, 552 (1999)

    Article  ADS  Google Scholar 

  4. W. Zhu, L. Seve, R. Sears, B. Sinkovic, S.S.P. Parkin: Phys. Rev. Lett. 86, 5389 (2001)

    Article  ADS  Google Scholar 

  5. F.Y. Yang, C.L. Chien: Phys. Rev. Lett. 85, 2597 (2000)

    Article  ADS  Google Scholar 

  6. V.I. Nikitenko, V.S. Gornakov, A.J. Shapiro, R.D. Shull, K. Liu, S.M. Zhou, C.L. Chien: Phys. Rev. Lett. 84, 765 (2000)

    Article  ADS  Google Scholar 

  7. T. Ambrose, C.L. Chien: J. Appl. Phys. 83, 6822 (1998)

    Article  ADS  Google Scholar 

  8. M.D. Stiles, R.D. McMichael: Phys. Rev. B 60, 12950 (1999)

    Article  ADS  Google Scholar 

  9. K. Takano, R.H. Kodama, A.E. Berkowitz, W. Cao, G. Thomas: Phys. Rev. Lett. 79, 1130 (1997)

    Article  ADS  Google Scholar 

  10. M. Gruyters, D. Riegel: Phys. Rev. B 63, 052401 (2001)

    Article  ADS  Google Scholar 

  11. W.J. Antel, J.F. Perjeru, G.R. Harp: Phy. Rev. Lett. 83, 1439 (1999)

    Article  ADS  Google Scholar 

  12. H. Ohldag, A. Scholl, F. Nolting, A. Anders, F.U. Hillebrecht, J. Stöhr: Phys. Rev. Lett. 86, 2878 (2001)

    Article  ADS  Google Scholar 

  13. J. Nogués, C. Leighton, I.K. Schuller: Phys. Rev. B 61, 1315 (2000)

    Article  ADS  Google Scholar 

  14. R.K. Zheng, G.H. Went, K.K. Fung, X.X. Zhang: J. Appl. Phys. 95, 5244 (2004)

    Article  ADS  Google Scholar 

  15. J.L. Dormann, D. Fiorani, E. Tronc: Adv. Chem. Phys. 98, 283 (1997)

    Google Scholar 

  16. I.S. Jacobs, C.P. Bean: In Magnetism, ed. by G.T. Rado, H. Suhl (Academic, New York 1963), Vol. III, p. 294.

  17. R.H. Kodama, S.A. Makhlouf, A.E. Berkowitz: Phys. Rev. Lett. 79, 1393 (1997)

    Article  ADS  Google Scholar 

  18. R.H. Kodama, A.E. Berkowitz: Phys. Rev. B 59, 6321 (1999)

    Article  ADS  MathSciNet  Google Scholar 

  19. A. Punnoose, H. Magnone, M.S. Seehra, J. Bonevich: Phys. Rev. B 64, 174420 (2001)

    Article  ADS  Google Scholar 

  20. A. Punnoose, M.S. Seehra: J. Appl. Phys. 91, 7766 (2002)

    Article  ADS  Google Scholar 

  21. J.Q. Xiao, J.S. Jiang, C.L. Chien: Phys. Rev. B 46, 9266 (1992)

    Article  ADS  Google Scholar 

  22. K. Yu-Zhang, D. Imhoff, Y. Leprince-Wang, E. Roy, S.M. Zhou, C.L. Chien: Acta Mater. 51, 1157 (2003)

    Article  Google Scholar 

  23. S.A. Makhlouf, F.T. Parker, A.E. Berkowitz: Phys. Rev. B 55, 14717 (1997)

    Article  ADS  Google Scholar 

  24. M.S. Seehra, V.S. Babu, A. Manivannan: Phys. Rev. B 61, 3513 (2000)

    Article  ADS  Google Scholar 

  25. S.M. Zhou, C.L. Chien: Phys. Rev. B 63, 104406 (2001)

    Article  ADS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Surface Physics Laboratory (State Key Laboratory) and Department of Physics, Fudan University, Shanghai, 200433, China

    S.M. Zhou

  2. Laboratoire de Physique des Solides, Bat. 510, Université Paris-Sud, 91405, Orsay Cedex, France

    D. Imhoff

  3. Laboratoire d’Analyse des Solides Surfaces Interfaces – DTI, Université de Reims, B.P. 1039, 51687, Reims Cedex 02, France

    K. Yu-Zhang

  4. Laboratoire de Physique des Matériaux Divisés et Interfaces, Université de Marne la Vallée, 5, Bd. Descartes, 77454, Marne la Vallée Cedex 2, France

    Y. Leprince-Wang

Authors
  1. S.M. Zhou
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. D. Imhoff
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. K. Yu-Zhang
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Y. Leprince-Wang
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to S.M. Zhou.

Additional information

PACS

75.30.Et; 75.30.Gw; 75.75.+a

Rights and permissions

Reprints and permissions

About this article

Cite this article

Zhou, S., Imhoff, D., Yu-Zhang, K. et al. Effect of field cooling on magnetic properties of ultrafine CoO/Co particles. Appl. Phys. A 81, 115–118 (2005). https://doi.org/10.1007/s00339-004-3047-6

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00339-004-3047-6

Keywords

Search

Navigation