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

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

doi:10.1063/1.2431471

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 journal › Article › peer-review

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 language	English
Article number	022504
Journal	Applied Physics Letters
Volume	90
Issue number	2
DOIs	https://doi.org/10.1063/1.2431471
Publication status	Published - 2007
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.2431471

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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.",

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AU - Yang, T.

AU - Hara, M.

AU - Hirohata, A.

AU - Kimura, T.

AU - Otani, Y.

PY - 2007

Y1 - 2007

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AB - 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.

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

Abstract

All Science Journal Classification (ASJC) codes

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