Current driven magnetization reversal in microstructured spin valve with current-in-plane configuration

C. Y. Kuo; C. T. Chao; J. Y. Ou; Lance Horng; J. C. Wu; Te Ho Wu; M. Tsunoda; M. Takahashi

doi:10.1063/1.3068483

Current driven magnetization reversal in microstructured spin valve with current-in-plane configuration

C. Y. Kuo, C. T. Chao, J. Y. Ou, Lance Horng, J. C. Wu, Te Ho Wu, M. Tsunoda, M. Takahashi

Department of Physics

Research output: Contribution to journal › Article

Abstract

The current induced magnetization reversals on the free layer of patterned spin valve ellipse have been investigated using differential magnetoresistance (MR) measurements, in which various direct currents were superimposed to 14 μA alternating current for the MR measurements. Conventional field scanned MR minor loops and subminor loops were measured under different scan ranges of magnetic field to verify the existing metastable states. The magnetization transitions between metastable states were realized in the dc scanned MR loop, in which the resistance levels were identified in accordance with the field scanned MR loop. This phenomenon is believed to be associated with the domain wall motion pushed by the direct current.

Original language	English
Article number	07D118
Journal	Journal of Applied Physics
Volume	105
Issue number	7
DOIs	https://doi.org/10.1063/1.3068483
Publication status	Published - 2009 Apr 27

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All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

Cite this

Kuo, C. Y., Chao, C. T., Ou, J. Y., Horng, L., Wu, J. C., Wu, T. H., ... Takahashi, M. (2009). Current driven magnetization reversal in microstructured spin valve with current-in-plane configuration. Journal of Applied Physics, 105(7), [07D118]. https://doi.org/10.1063/1.3068483

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abstract = "The current induced magnetization reversals on the free layer of patterned spin valve ellipse have been investigated using differential magnetoresistance (MR) measurements, in which various direct currents were superimposed to 14 μA alternating current for the MR measurements. Conventional field scanned MR minor loops and subminor loops were measured under different scan ranges of magnetic field to verify the existing metastable states. The magnetization transitions between metastable states were realized in the dc scanned MR loop, in which the resistance levels were identified in accordance with the field scanned MR loop. This phenomenon is believed to be associated with the domain wall motion pushed by the direct current.",

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AU - Tsunoda, M.

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10.1063/1.3068483