Pd magnetism induced by indirect interlayer exchange coupling

W. E. Bailey; A. Ghosh; S. Auffret; E. Gautier; U. Ebels; F. Wilhelm; A. Rogalev

doi:10.1103/PhysRevB.86.144403

Pd magnetism induced by indirect interlayer exchange coupling

Materials Science 2013-08-05 v1 Mesoscale and Nanoscale Physics

Authors: W. E. Bailey , A. Ghosh , S. Auffret , E. Gautier , U. Ebels , F. Wilhelm , A. Rogalev

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Abstract

We show that very large paramagnetic moments are created in ultrathin Pd layers through indirect interlayer exchange coupling. Pd $L$ -edge x-ray magnetic circular dichroism measurements show Pd moments in [Pd(2.5nm)/Cu(3nm)/Ni $_{81}$ Fe $_{19}$ (5nm)/Cu(3nm)] $_{20}$ superlattices which are ferromagnetically aligned with the applied field and nearly 3% the size of Pd moments created in directly exchange coupled [Pd(2.5nm)/Ni $_{81}$ Fe $_{19}$ (5nm)] $_{20}$ superlattices. The induced moment is two orders of magnitude larger than that expected from RKKY exchange acting on the bulk paramagnetic susceptibility of Pd.

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@article{arxiv.1210.0517,
  title  = {Pd magnetism induced by indirect interlayer exchange coupling},
  author = {W. E. Bailey and A. Ghosh and S. Auffret and E. Gautier and U. Ebels and F. Wilhelm and A. Rogalev},
  journal= {arXiv preprint arXiv:1210.0517},
  year   = {2013}
}

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5 pages, 3 figures, to appear in Phys. Rev. B

Pd magnetism induced by indirect interlayer exchange coupling

Abstract

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