Skip to main content
SpringerLink
Log in

Ferromagnetic resonance linewidth in CoNi/FeMn bilayers

  • Published:
Applied Physics A Aims and scope Submit manuscript

Abstract

Out-of-plane ferromagnetic resonance (FMR) spectra of sputtered Co40Ni60/FeMn bilayers with various CoNi layer thicknesses were measured and analyzed by the Landau–Lifshitz–Gilbert equation. With increasing CoNi layer thickness, the effective demagnetizing field increases and the Landé g factor decreases. At the same time, the peak-to-peak linewidth ΔHpp in the parallel and perpendicular configurations decreases. The angular dependence of the FMR linewidth can be described very well by the intrinsic Gilbert damping effect and the magnetic inhomogeneity. The Gilbert damping G factor is inversely proportional to the CoNi layer thickness and proportional to (g-2)2 with the variation of the CoNi layer thickness.

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. W.H. Meiklejohn, C.P. Bean: Phys. Rev. 102, 1413 (1956); 105, 904 (1957)

    Article  ADS  Google Scholar 

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

    Article  Google Scholar 

  3. V.I. Nikitenko, V.S. Gornakov, L.M. Dedukh, Y.P. Kabanov, A.F. Khapikov, A.J. Shapiro, R.D. Shull, A. Chaiken, R.P. Michel: Phys. Rev. B 57, R8111 (1998)

  4. 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 

  5. M.D. Stiles, R.D. McMichael: Phys. Rev. B 59, 3722 (1999)

    Article  ADS  Google Scholar 

  6. B. Heinrich: In: Ultrathin Magnetic Structures II, ed. by B. Heinrich, J.A.C. Bland (Springer, Berlin 1994) Chapt. 3

  7. R.D. McMichael, M.D. Stiles, P.J. Chen, W.F. Egelhoff Jr.: J. Appl. Phys. 83, 7037 (1998)

    Article  ADS  Google Scholar 

  8. M. Sparks, R. Loudon, C. Kittel: Phys. Rev. 122, 791 (1961)

    Article  ADS  Google Scholar 

  9. R.C. Flectcher, R.C. Lcraw, E.G. Spencer: Phys. Rev. 117, 955 (1960)

    Article  ADS  Google Scholar 

  10. S. Mizukami, Y. Ando, T. Miyazaki: Phys. Rev. B 66, 104413 (2002)

    Article  ADS  Google Scholar 

  11. W. Platow, A.N. Anisimov, G.L. Dunifer, M. Farle, K. Baberschke: Phys. Rev. B 58, 5611 (1998)

    Article  ADS  Google Scholar 

  12. L. Berger: J. Appl. Phys. 90, 4632 (2001)

    Article  ADS  Google Scholar 

  13. R. Urban, G. Woltersdorf, B. Heinrich: Phys. Rev. Lett. 87, 217204 (2001)

    Article  ADS  Google Scholar 

  14. S. Mizukami, Y. Ando, T. Miyazaki: Jpn. J. Appl. Phys. 40, 580 (2001)

    Article  ADS  Google Scholar 

  15. A. Azevedo, A.B. Oliveira, F.M. de Aguiar, S.M. Rezende: Phys. Rev. B 62, 5331 (2000)

    Article  ADS  Google Scholar 

  16. J. Dubowik, F. Stobiecki: J. Magn. Magn. Mater. 242, 538 (2002)

    Article  ADS  Google Scholar 

  17. B. Heinrich, J.F. Cochran: Adv. Phys. 42, 523 (1993)

    Article  ADS  Google Scholar 

  18. H. Suhl: Phys. Rev. 97, 555 (1955)

    Article  ADS  Google Scholar 

  19. C. Kittel: Phys. Rev. 76, 743 (1949)

    Article  ADS  Google Scholar 

  20. R.D. McMichael, M.D. Stiles, P.J. Chen, W.F. Egelhoff Jr.: Phys. Rev. B 58, 8605 (1998)

    Article  ADS  Google Scholar 

  21. R.J. Elliott: Phys. Rev. 96, 266 (1954)

    Article  ADS  Google Scholar 

  22. V. Kambersky: Can. J. Phys. 48, 2906 (1970)

    Article  ADS  Google Scholar 

  23. M.J. Hurben, C.E. Patton: J. Appl. Phys. 83, 4344 (1998)

    Article  ADS  Google Scholar 

Download references

Author information

Authors and Affiliations

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

    S.J. Yuan, L. Wang, R. Shan & S.M. Zhou

  2. National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, 210093, China

    S.M. Zhou

Authors
  1. S.J. Yuan
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. L. Wang
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. R. Shan
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. S.M. Zhou
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to S.M. Zhou.

Additional information

PACS

75.70.-i; 76.50.+g; 75.30.Gw

Rights and permissions

Reprints and permissions

About this article

Cite this article

Yuan, S., Wang, L., Shan, R. et al. Ferromagnetic resonance linewidth in CoNi/FeMn bilayers. Appl. Phys. A 79, 701–705 (2004). https://doi.org/10.1007/s00339-003-2316-0

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00339-003-2316-0

Keywords

Search

Navigation