Magnetic characterization and switching of Co nanorings in current-perpendicular-to-plane configuration

T. Yang, M. Hara, A. Hirohata, T. Kimura, Y. Otani

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

The authors fabricated Co nanorings incorporated in the vertical pseudo-spin-valve nanopillar structures with deep submicron lateral sizes. It is shown that the current-perpendicular-to-plane giant magnetoresistance can be used to characterize a very small magnetic nanoring effectively. Both the onion state and the flux-closure vortex state are observed. The Co nanorings can be switched between the onion states as well as between onion and vortex states not only by the external field but also by the perpendicularly injected dc current.

Original languageEnglish
Article number022504
JournalApplied Physics Letters
Volume90
Issue number2
DOIs
Publication statusPublished - Jan 22 2007
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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