User menu

Accès à distance ? S'identifier sur le proxy UCLouvain

Evidence for a short spin diffusion length in permalloy from the giant magnetoresistance of multilayered nanowires

Primary tabs

Dubois, Sylvain Piraux, Luc [UCL] George, JM. Ounadjela, K. Duvail, JL Fert, A.

We present magnetization and giant magnetoresistance (GMR) measurements performed on two series of electrodeposited Py/Cu multilayered nanowires (Py = Ni80Fe20) of diameter null set =90 nm. The multilayers of the first series are composed of a conventional stacking of Py and Cu layers and the GMR is studied as a function of the Cu thickness for a constant Py thickness. The multilayers of the second series are composed of Py/Cu/Py trilayers uniformly distributed along the filament and separated from each other by thick Cu layers. For this second series, magnetic and GMR properties were investigated as a function of the Py layer thickness and our magnetization measurements demonstrate that, for Py layers thinner than about 90 nm, the magnetic moments of the two Py layers of a trilayer are approximately antiparallel at zero field. Analysis of the GMR data using the Valet-Fert model allows us to estimate that the spin diffusion length in Py, L-sf((PY)) , is between 3.3 and 5.3 nm. [S0163-1829(99)06125-1].

Document type Article de périodique (Journal article) – Article de recherche
Publication date 1999
Language Anglais
Journal information "Physical Review. B, Condensed Matter" - Vol. 60, no. 1, p. 477-484 (1999)
Peer reviewed yes
Publisher American Physical Soc (College Pk)
issn 0163-1829
Publication status Publié
Affiliation UCL - Autre
Links
  1. Piraux L., George J. M., Despres J. F., Leroy C., Ferain E., Legras R., Ounadjela K., Fert A., Giant magnetoresistance in magnetic multilayered nanowires, 10.1063/1.112672
  2. Blondel A., Meier J. P., Doudin B., Ansermet J.‐Ph., Giant magnetoresistance of nanowires of multilayers, 10.1063/1.112495
  3. Liu K., Nagodawithana K., Searson P. C., Chien C. L., Perpendicular giant magnetoresistance of multilayered Co/Cu nanowires, 10.1103/physrevb.51.7381
  4. Pratt W. P., Lee S.-F., Slaughter J. M., Loloee R., Schroeder P. A., Bass J., Perpendicular giant magnetoresistances of Ag/Co multilayers, 10.1103/physrevlett.66.3060
  5. Gijs M. A. M., Lenczowski S. K. J., Giesbers J. B., Perpendicular giant magnetoresistance of microstructured Fe/Cr magnetic multilayers from 4.2 to 300 K, 10.1103/physrevlett.70.3343
  6. Vavra W., Cheng S. F., Fink Anita, Krebs J. J., Prinz G. A., Perpendicular current magnetoresistance in Co/Cu/NiFeCo/Cu multilayered microstructures, 10.1063/1.113507
  7. Lee S.-F., Pratt W.P., Yang Q., Holody P., Loloee R., Schroeder P.A., Bass J., Two-channel analysis of CPP-MR data for Ag/Co and AgSn/Co multilayers, 10.1016/0304-8853(93)90147-t
  8. Pratt W.P., Lee S.-F., Holody P., Yang Q., Loloee R., Bass J., Schroeder P.A., Giant magnetoresistance with current perpendicular to the multilayer planes, 10.1016/0304-8853(93)90639-j
  9. Yang Q., Holody P., Lee S.-F., Henry L. L., Loloee R., Schroeder P. A., Pratt W. P., Bass J., Spin flip diffusion length and giant magnetoresistance at low temperatures, 10.1103/physrevlett.72.3274
  10. Dubois S., Marchal C., Beuken J. M., Piraux L., Duvail J. L., Fert A., George J. M., Maurice J. L., Perpendicular giant magnetoresistance of NiFe/Cu multilayered nanowires, 10.1063/1.118385
  11. Parkin S. S. P., Oscillations in giant magnetoresistance and antiferromagnetic coupling in [Ni81Fe19/Cu]Nmultilayers, 10.1063/1.106593
  12. S. K. J. Lenczowski, MRS Symposia Proceedings (1995)
  13. Valet T., Fert A., Theory of the perpendicular magnetoresistance in magnetic multilayers, 10.1103/physrevb.48.7099
  14. Lee S. F., Pratt W. P., Loloee R., Schroeder P. A., Bass J., ‘‘Field-dependent interface resistance’’ of Ag/Co multilayers, 10.1103/physrevb.46.548
  15. Voegeli B., Blondel A., Doudin B., Ansermet J.-Ph., Electron transport in multilayered Co/Cu nanowires, 10.1016/0304-8853(95)00511-0
  16. Piraux L., Dubois S., Marchal C., Beuken J.M., Filipozzi L., Despres J.F., Ounadjela K., Fert A., Perpendicular magnetoresistance in Co/Cu multilayered nanowires, 10.1016/0304-8853(95)00882-9
  17. Johnson Mark, Spin accumulation in gold films, 10.1103/physrevlett.70.2142
  18. Piraux L., Dubois S., Fert A., Perpendicular giant magnetoresistance in magnetic multilayered nanowires, 10.1016/0304-8853(96)00373-3
  19. Piraux L., Dubois S., Fert A., Belliard L., The temperature dependence of the perpendicular giant magnetoresistance in Co/Cu multilayered nanowires, 10.1007/s100510050398
  20. Steenwyk S.D., Hsu S.Y., Loloee R., Bass J., Pratt W.P., Perpendicular-current exchange-biased spin-valve evidence for a short spin-diffusion lenght in permalloy, 10.1016/s0304-8853(97)00061-9
  21. Pratt W.P., Steenwyk S.D., Hsu S.Y., Chiang W.-C., Schaefer A.C., Loloee R., Bass J., Perpendicular-current transport in exchange-biased spin-valves, 10.1109/20.619480
  22. Ferain E., Legras R., Characterisation of nanoporous particle track etched membrane, 10.1016/s0168-583x(97)00194-8
  23. R. Ferré, Phys. Rev. B, 56, 14 (1997)
  24. Maurice J.-L., Imhoff D., Etienne P., Durand O., Dubois S., Piraux L., George J.-M., Galtier P., Fert A., Microstructure of magnetic metallic superlattices grown by electrodeposition in membrane nanopores, 10.1016/s0304-8853(97)01104-9
  25. Fert Albert, Duvail Jean-Luc, Valet Thierry, Spin relaxation effects in the perpendicular magnetoresistance of magnetic multilayers, 10.1103/physrevb.52.6513
  26. Hsu S. Y., Barthélémy A., Holody P., Loloee R., Schroeder P. A., Fert A., Towards a Unified Picture of Spin Dependent Transport in and Perpendicular Giant Magnetoresistance and Bulk Alloys, 10.1103/physrevlett.78.2652
  27. Zhang S., Levy Peter M., Interpretation of the magnetoresistance in multilayered structures, 10.1103/physrevb.47.6776
  28. S.K.J. Lenczowski, Magnetic Ultrathin Films, Multilayers and Surfaces
  29. Lenczowski S. K. J., Gijs M. A. M., Giesbers J. B., van de Veerdonk R. J. M., de Jonge W. J. M., Interpretation of the giant magnetoresistance effect in Co/Cu(100) multilayers with the quantum model of giant magnetoresistance, 10.1103/physrevb.50.9982
  30. Mosca D.H., Petroff F., Fert A., Schroeder P.A., Pratt W.P., Laloee R., Oscillatory interlayer coupling and giant magnetoresistance in Co/Cu multilayers, 10.1016/0304-8853(91)90102-g
  31. I. A. Campbell, Ferromagnetic Materials (1982)
  32. P. Monod, J. Phys. (France), 43, 393 (1982)
  33. Fert Albert, Lee Shang-Fan, Theory of the bipolar spin switch, 10.1103/physrevb.53.6554
  34. Fert Albert, Lee Shang-Fan, Spin injection: theory and application to Johnson's spin switch, 10.1016/s0304-8853(96)00484-2
  35. Hershfield Selman, Zhao Hui Lin, Charge and spin transport through a metallic ferromagnetic-paramagnetic-ferromagnetic junction, 10.1103/physrevb.56.3296
Bibliographic reference Dubois, Sylvain ; Piraux, Luc ; George, JM. ; Ounadjela, K. ; Duvail, JL ; et. al. Evidence for a short spin diffusion length in permalloy from the giant magnetoresistance of multilayered nanowires. In: Physical Review. B, Condensed Matter, Vol. 60, no. 1, p. 477-484 (1999)
Permanent URL http://hdl.handle.net/2078.1/44298