Current-induced magnetization switching in permalloy-based nanopillars with Cu, Ag, and Au

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Kurt H. , Loloee R., Pratt W., Bass J.

JOURNAL OF APPLIED PHYSICS, vol.97, no.10, 2005 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 97 Issue: 10
  • Publication Date: 2005
  • Doi Number: 10.1063/1.1851882
  • Title of Journal : JOURNAL OF APPLIED PHYSICS

Abstract

We compare magnetoresistances (MR) and switching currents (I(s)) at room temperature (295 K) and 4.2 K for Permalloy/N/Permalloy nanopillars undergoing current-induced magnetization switching (CIMS), with nonmagnetic metals N=Cu, Ag, and Au. The N-metal thickness is held fixed at 10 nm. Any systematic differences in MR and I(s) for the different N-metals are modest, suggesting that Ag and Au represent potentially viable alternatives for CIMS studies and devices to the more widely used Cu. (c) 2005 American Institute of Physics.