Current-driven resistance oscillation in exchange-biased spin valves with a low aspect ratio

Y. Jiang; M. Tezuka; K. Inomata

doi:10.1063/1.2356376

Current-driven resistance oscillation in exchange-biased spin valves with a low aspect ratio

Y. Jiang, M. Tezuka, K. Inomata

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

6 Citations (Scopus)

Abstract

The authors report on current-induced magnetization switching (CIMS) in current-perpendicular-to-plane exchange-biased spin-valve nanopillars with a low aspect ratio of 1. Due to the complex domain structure of the nanopillars, an intermediate resistance state has been clearly observed in the CIMS curve. A distinctive current-driven resistance oscillation and a very low critical current density of 6 × 10⁵ A/cm² have been demonstrated and explained to result from the competition between magnetic field, spin torque, and thermal activation.

Original language	English
Article number	122514
Journal	Applied Physics Letters
Volume	89
Issue number	12
DOIs	https://doi.org/10.1063/1.2356376
Publication status	Published - 2006
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.2356376

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title = "Current-driven resistance oscillation in exchange-biased spin valves with a low aspect ratio",

abstract = "The authors report on current-induced magnetization switching (CIMS) in current-perpendicular-to-plane exchange-biased spin-valve nanopillars with a low aspect ratio of 1. Due to the complex domain structure of the nanopillars, an intermediate resistance state has been clearly observed in the CIMS curve. A distinctive current-driven resistance oscillation and a very low critical current density of 6 × 105 A/cm2 have been demonstrated and explained to result from the competition between magnetic field, spin torque, and thermal activation.",

author = "Y. Jiang and M. Tezuka and K. Inomata",

note = "Funding Information: This work was supported by IT-program RR 2002, the Priority Area (1407602) from MEXT, the National Science Foundation of China with Grant Nos. 90607020 and 50571021, Program for NCET, and the Ph.D. Programs foundation of Ministry of Education of China under Grant No. 20050008037.",

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volume = "89",

journal = "Applied Physics Letters",

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AU - Jiang, Y.

AU - Tezuka, M.

AU - Inomata, K.

N1 - Funding Information: This work was supported by IT-program RR 2002, the Priority Area (1407602) from MEXT, the National Science Foundation of China with Grant Nos. 90607020 and 50571021, Program for NCET, and the Ph.D. Programs foundation of Ministry of Education of China under Grant No. 20050008037.

PY - 2006

Y1 - 2006

N2 - The authors report on current-induced magnetization switching (CIMS) in current-perpendicular-to-plane exchange-biased spin-valve nanopillars with a low aspect ratio of 1. Due to the complex domain structure of the nanopillars, an intermediate resistance state has been clearly observed in the CIMS curve. A distinctive current-driven resistance oscillation and a very low critical current density of 6 × 105 A/cm2 have been demonstrated and explained to result from the competition between magnetic field, spin torque, and thermal activation.

AB - The authors report on current-induced magnetization switching (CIMS) in current-perpendicular-to-plane exchange-biased spin-valve nanopillars with a low aspect ratio of 1. Due to the complex domain structure of the nanopillars, an intermediate resistance state has been clearly observed in the CIMS curve. A distinctive current-driven resistance oscillation and a very low critical current density of 6 × 105 A/cm2 have been demonstrated and explained to result from the competition between magnetic field, spin torque, and thermal activation.

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ER -

Current-driven resistance oscillation in exchange-biased spin valves with a low aspect ratio

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