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Domain Wall Spin Structures in 3d Metal Ferromagnetic Nanostructures

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Part of the Advances in Solid State Physics book series (ASSP,volume 46)

Abstract

In this article, a comprehensive study of head-to-head domain wall spin structures in Ni80Fe20 and Co nanostructures is presented. Quantitative domain wall type phase diagrams for NiFe and Co are obtained and compared with available theoretical predictions and micromagnetic simulations. Differences to the experiment are explained taking into account thermal excitations. Thermally induced domain wall type transformations are observed from which a vortex core nucleation barrier height is obtained. The stray field of a domain wall is mapped directly with sub-10nm resolution using off-axis electron holography, and the field intensity is found to decrease as 1/r with distance. The magnetic dipolar coupling of domain walls in NiFe and Co elements is studied using X-ray magnetic circular dicroism photoemission electron microscopy. We observe that the spin structures of interacting domain walls change from vortex to transverse walls, when the distance between the walls is reduced. Using the measured stray field values, the energy barrier height distribution for the nucleation of a vortex core is obtained.

Keywords

  • Domain Wall
  • Spin Structure
  • Wall Type
  • Transverse Wall
  • Adjacent Wall

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.

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References

  1. D. A. Allwood et al., Science 309, 1688 (2005)

    CrossRef  ADS  Google Scholar 

  2. G. A. Prinz, J. Magn. Magn. Mater. 200, 57 (1999)

    CrossRef  ADS  Google Scholar 

  3. S. S. P. Parkin: U.S. patent 6,834,005 and patent application 10/984,055 (2004)

    Google Scholar 

  4. P. M. Levy and S. Zhang, Phys. Rev. Lett. 79, 5110 (1997)

    CrossRef  ADS  Google Scholar 

  5. U. Ebels et al., Phys. Rev. Lett. 84, 983 (2000)

    CrossRef  ADS  Google Scholar 

  6. M. Kläui et al., Phys. Rev. Lett. 90, 097202 (2003)

    CrossRef  ADS  Google Scholar 

  7. D. Atkinson et al., Nature Mat. 2, 85 (2003)

    CrossRef  ADS  Google Scholar 

  8. Y. Nakatani, A. Thiaville, and J. Miltat, Nature Mat. 2, 521 (2003)

    CrossRef  ADS  Google Scholar 

  9. R. Wieser, U. Nowak, and K. D. Usadel, Phys. Rev. B 69, 064401 (2004)

    CrossRef  ADS  Google Scholar 

  10. M. Kläui et al., Appl. Phys. Lett. 87, 102509 (2005)

    CrossRef  ADS  Google Scholar 

  11. U. Rüdiger et al., Phys. Rev. Lett. 80, 5639 (1998)

    CrossRef  ADS  Google Scholar 

  12. A. D. Kent et al., J. Phys.: Cond. Mat. 13, R461 (2001)

    CrossRef  ADS  Google Scholar 

  13. A. Yamaguchi et al., Phys. Rev. Lett. 92, 077205 (2004)

    CrossRef  ADS  Google Scholar 

  14. M. Kläui et al., Phys. Rev. Lett. 94, 106601 (2005)

    CrossRef  ADS  Google Scholar 

  15. M. Kläui et al., Phys. Rev. Lett. 95, 026601 (2005)

    CrossRef  ADS  Google Scholar 

  16. D. Atkinson and R. P. Cowburn, Appl. Phys. Lett. 85, 1386 (2004)

    CrossRef  ADS  Google Scholar 

  17. D. Lacour et al., Appl. Phys. Lett. 85, 4681 (2004)

    CrossRef  ADS  Google Scholar 

  18. A. Yamaguchi et al., Appl. Phys. Lett. 86, 012511 (2005)

    CrossRef  ADS  Google Scholar 

  19. N. Kazantseva, R. Wieser, and U. Nowak, Phys. Rev. Lett. 94, 037206 (2005)

    CrossRef  ADS  Google Scholar 

  20. J. Rothman et al., Phys. Rev. Lett. 86, 1098 (2001)

    CrossRef  ADS  Google Scholar 

  21. R. D. McMichael and M. J. Donahue, IEEE Trans. Magn. 33, 4167 (1997)

    CrossRef  ADS  Google Scholar 

  22. X. Zhu et al., J. Appl. Phys. 93, 8540 (2003)

    CrossRef  ADS  Google Scholar 

  23. M. Kläui et al., Appl. Phys. Lett. 86, 032504 (2005)

    CrossRef  ADS  Google Scholar 

  24. L. J. Heyderman et al., J. Appl. Phys. 93, 10011 (2003)

    CrossRef  ADS  Google Scholar 

  25. Y. G. Yoo et al., Appl. Phys. Lett. 82, 2470 (2003)

    CrossRef  ADS  Google Scholar 

  26. J. Stöhr et al., Science 259, 658 (1993)

    ADS  Google Scholar 

  27. L. J. Heyderman et al., J. Magn. Magn. Mater. 290–291, 86 (2005)

    CrossRef  Google Scholar 

  28. A. Tonomura, Adv. Phys. 41, 59 (1992)

    CrossRef  ADS  Google Scholar 

  29. R. E. Dunin-Borkowski et al., J. Microsc. 200, 187 (2000)

    CrossRef  Google Scholar 

  30. M. Laufenberg et al., Appl. Phys. Lett. 88, 052507 (2006)

    CrossRef  ADS  Google Scholar 

  31. M. Kläui et al., Appl. Phys. Lett. 85, 5637 (2004)

    CrossRef  ADS  Google Scholar 

  32. M. Kläui et al., Physica B 343, 343 (2004)

    CrossRef  ADS  Google Scholar 

  33. The OOMMF package is available at http://math.nist.gov/oommf.

    Google Scholar 

  34. C. A. F. Vaz et al., Phys. Rev. B 72, 224426 (2005)

    CrossRef  ADS  Google Scholar 

  35. C. A. F. Vaz et al., Nucl. Instrum. Meth. Phys. Res. B 246, 13 (2006)

    CrossRef  ADS  Google Scholar 

  36. M. Kläui et al., J. Appl. Phys. (in press) 99 (2006)

    Google Scholar 

  37. I. Hashim, H. S. Joo, and H. A. Atwater, Surf. Rev. Lett. 2, 427 (1994)

    CrossRef  Google Scholar 

  38. A. Hubert and R. Schäfer: Magnetic Domains-The Analysis of Magnetic Microstructures (Springer, Berlin Heidelberg New York 1998)

    Google Scholar 

  39. M. H. Park et al., Phys. Rev. B 73, 094424 (2006)

    CrossRef  ADS  Google Scholar 

  40. M. Kläui, et al., submitted

    Google Scholar 

  41. Y. Nakatani et al., J. Magn. Magn. Mater. 290–291, 750 (2005)

    CrossRef  Google Scholar 

  42. M. Laufenberg et al., submitted

    Google Scholar 

  43. R. P. Cowburn et al., Phys. Rev. Lett. 83, 1042 (1999)

    CrossRef  ADS  Google Scholar 

  44. M. McCaig: Permanent Magnets in Theory and Practice, 1st ed. (Pentech, London 1977)

    Google Scholar 

Download references

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Laufenberg, M. et al. (2008). Domain Wall Spin Structures in 3d Metal Ferromagnetic Nanostructures. In: Advances in Solid State Physics. Advances in Solid State Physics, vol 46. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-38235-5_21

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