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


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Alhajdarwish M., Kurt H. , Urazhdin S., Fert A., Loloee R., Pratt W., ...More

PHYSICAL REVIEW LETTERS, vol.93, no.15, 2004 (Journal Indexed in SCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 93 Issue: 15
  • Publication Date: 2004
  • Doi Number: 10.1103/physrevlett.93.157203
  • Title of Journal : PHYSICAL REVIEW LETTERS

Abstract

By combining pairs of ferromagnetic metals with the same or different signs of scattering anisotropies in ferromagnetic-nonmagnetic-ferromagnetic metal nanopillars, we independently invert just the magnetoresistance, just the direction of current-induced magnetization switching, or both together, at room temperature (295 K) and at 4.2 K. In all cases studied, the switching direction is correctly predicted from the net scattering anisotropy of the fixed ferromagnet, including both bulk and interfacial contributions.