Controlled normal and inverse magnetoresistance and current-driven magnetization switching in magnetic nanopillars

M. AlHajDarwish; H. Kurt; S. Urazhdin; A. Fert; R. Loloee; W. P. Pratt; J. Bass

doi:10.1103/PhysRevLett.93.157203

Controlled normal and inverse magnetoresistance and current-driven magnetization switching in magnetic nanopillars

Materials Science 2013-05-29 v1

Authors: M. AlHajDarwish , H. Kurt , S. Urazhdin , A. Fert , R. Loloee , W. P. Pratt , J. Bass

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Abstract

Combining pairs of ferromagnetic metals with different signs of scattering anisotropies, let us independently invert the magnetoresistance and the direction of current-driven switching in ferromagnetic/non-magnetic/ferromagnetic metal nanopillars. We show all four combinations of normal and inverse behaviors, at both room temperature and 4.2K. In all cases studied, the direction of switching is set by the net scattering anisotropy of the fixed (polarizing) ferromagnet. We provide simple arguments for what we see.

Keywords

magnetoresistance current-driven magnetization switching magnetic nanopillars scattering anisotropy ferromagnetic metals

Cite

@article{arxiv.cond-mat/0312475,
  title  = {Controlled normal and inverse magnetoresistance and current-driven magnetization switching in magnetic nanopillars},
  author = {M. AlHajDarwish and H. Kurt and S. Urazhdin and A. Fert and R. Loloee and W. P. Pratt and J. Bass},
  journal= {arXiv preprint arXiv:cond-mat/0312475},
  year   = {2013}
}

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4 pages, 5 figures, submitted to PRL

Controlled normal and inverse magnetoresistance and current-driven magnetization switching in magnetic nanopillars

Abstract

Keywords

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