Changes in magnetic scattering anisotropy at a ferromagnetic/superconducting interface

K. Eid; H. Kurt; W. P. Pratt; J. Bass

doi:10.1103/PhysRevB.70.100411

Changes in magnetic scattering anisotropy at a ferromagnetic/superconducting interface

Materials Science 2009-11-10 v1

Authors: K. Eid , H. Kurt , W. P. Pratt , J. Bass

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Abstract

We show that some metals and alloys (X = Cu, Ag, FeMn, or Cu and Ag combined with each other), sputtered between ferromagnetic Co and superconducting Nb, produce no change in current-perpendicular-to-plane magnetoresistance (CPP-MR) in a carefully designed CPP-spin-valve. In contrast, other metals (Ru or Au) or combinations (Cu or Ag combined with Au, Ru, or FeMn) change the CPP-MR, in some cases even reversing its sign. We ascribe these changes to activation of magnetic scattering anisotropies at a ferromagnetic/superconducting interface, apparently by strong spin-flipping between the Co and Nb layers.

Keywords

magnetic anisotropy doped magnetic materials spintronics

Cite

@article{arxiv.cond-mat/0404396,
  title  = {Changes in magnetic scattering anisotropy at a ferromagnetic/superconducting interface},
  author = {K. Eid and H. Kurt and W. P. Pratt and J. Bass},
  journal= {arXiv preprint arXiv:cond-mat/0404396},
  year   = {2009}
}

Comments

4 pages, 4 figures

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