Current-driven magnetization reversal in exchange-biased spin-valve nanopillars

J. Hayakawa; H. Takahashi; K. Ito; M. Fujimori; S. Heike; T. Hashizume; M. Ichimura; S. Ikeda; H. Ohno

doi:10.1063/1.1927707

Current-driven magnetization reversal in exchange-biased spin-valve nanopillars

J. Hayakawa, H. Takahashi, K. Ito, M. Fujimori, S. Heike, T. Hashizume, M. Ichimura, S. Ikeda, H. Ohno

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

We have investigated the current-driven magnetization reversal of exchange-biased spin-valve giant magnetoresistive nanopillars with a magnetically pinned ferromagnetic layer. Current-driven magnetization reversal of a ferromagnetic layer with a smaller MV (M: magnetization, V: volume) value is found to take place even when the layer is pinned by the exchange bias induced by an antiferromagnet. The critical current density Jc of the spin-valve nanopillar with a MnIr layer adjacent to the current-driven free layer is of the same order as that of a Co/Cu/Co nanopillar (~ 107 A cm2).

Original language	English
Article number	114321
Journal	Journal of Applied Physics
Volume	97
Issue number	11
DOIs	https://doi.org/10.1063/1.1927707
Publication status	Published - 2005
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1063/1.1927707

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title = "Current-driven magnetization reversal in exchange-biased spin-valve nanopillars",

abstract = "We have investigated the current-driven magnetization reversal of exchange-biased spin-valve giant magnetoresistive nanopillars with a magnetically pinned ferromagnetic layer. Current-driven magnetization reversal of a ferromagnetic layer with a smaller MV (M: magnetization, V: volume) value is found to take place even when the layer is pinned by the exchange bias induced by an antiferromagnet. The critical current density Jc of the spin-valve nanopillar with a MnIr layer adjacent to the current-driven free layer is of the same order as that of a Co/Cu/Co nanopillar (~ 107 A cm2).",

author = "J. Hayakawa and H. Takahashi and K. Ito and M. Fujimori and S. Heike and T. Hashizume and M. Ichimura and S. Ikeda and H. Ohno",

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AU - Hayakawa, J.

AU - Takahashi, H.

AU - Ito, K.

AU - Fujimori, M.

AU - Heike, S.

AU - Hashizume, T.

AU - Ichimura, M.

AU - Ikeda, S.

AU - Ohno, H.

PY - 2005

Y1 - 2005

N2 - We have investigated the current-driven magnetization reversal of exchange-biased spin-valve giant magnetoresistive nanopillars with a magnetically pinned ferromagnetic layer. Current-driven magnetization reversal of a ferromagnetic layer with a smaller MV (M: magnetization, V: volume) value is found to take place even when the layer is pinned by the exchange bias induced by an antiferromagnet. The critical current density Jc of the spin-valve nanopillar with a MnIr layer adjacent to the current-driven free layer is of the same order as that of a Co/Cu/Co nanopillar (~ 107 A cm2).

AB - We have investigated the current-driven magnetization reversal of exchange-biased spin-valve giant magnetoresistive nanopillars with a magnetically pinned ferromagnetic layer. Current-driven magnetization reversal of a ferromagnetic layer with a smaller MV (M: magnetization, V: volume) value is found to take place even when the layer is pinned by the exchange bias induced by an antiferromagnet. The critical current density Jc of the spin-valve nanopillar with a MnIr layer adjacent to the current-driven free layer is of the same order as that of a Co/Cu/Co nanopillar (~ 107 A cm2).

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Current-driven magnetization reversal in exchange-biased spin-valve nanopillars

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