Magnetization switching in a CoFeB/MgO magnetic tunnel junction by combining spin-transfer torque and electric field-effect

S. Kanai; Y. Nakatani; M. Yamanouchi; S. Ikeda; H. Sato; F. Matsukura; H. Ohno

doi:10.1063/1.4880720

Magnetization switching in a CoFeB/MgO magnetic tunnel junction by combining spin-transfer torque and electric field-effect

S. Kanai, Y. Nakatani, M. Yamanouchi, S. Ikeda, H. Sato, F. Matsukura, H. Ohno

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

84 Citations (Scopus)

Abstract

We propose and demonstrate a scheme for magnetization switching in magnetic tunnel junctions, in which two successive voltage pulses are applied to utilize both spin-transfer torque and electric field effect. Under this switching scheme, a CoFeB/MgO magnetic tunnel junction with perpendicular magnetic easy axis is shown to switch faster than by spin-transfer torque alone and more reliably than that by electric fields alone.

Original language	English
Article number	212406
Journal	Applied Physics Letters
Volume	104
Issue number	21
DOIs	https://doi.org/10.1063/1.4880720
Publication status	Published - 2014 May 26

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.4880720

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abstract = "We propose and demonstrate a scheme for magnetization switching in magnetic tunnel junctions, in which two successive voltage pulses are applied to utilize both spin-transfer torque and electric field effect. Under this switching scheme, a CoFeB/MgO magnetic tunnel junction with perpendicular magnetic easy axis is shown to switch faster than by spin-transfer torque alone and more reliably than that by electric fields alone.",

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AU - Kanai, S.

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AU - Yamanouchi, M.

AU - Ikeda, S.

AU - Sato, H.

AU - Matsukura, F.

AU - Ohno, H.

PY - 2014/5/26

Y1 - 2014/5/26

N2 - We propose and demonstrate a scheme for magnetization switching in magnetic tunnel junctions, in which two successive voltage pulses are applied to utilize both spin-transfer torque and electric field effect. Under this switching scheme, a CoFeB/MgO magnetic tunnel junction with perpendicular magnetic easy axis is shown to switch faster than by spin-transfer torque alone and more reliably than that by electric fields alone.

AB - We propose and demonstrate a scheme for magnetization switching in magnetic tunnel junctions, in which two successive voltage pulses are applied to utilize both spin-transfer torque and electric field effect. Under this switching scheme, a CoFeB/MgO magnetic tunnel junction with perpendicular magnetic easy axis is shown to switch faster than by spin-transfer torque alone and more reliably than that by electric fields alone.

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Magnetization switching in a CoFeB/MgO magnetic tunnel junction by combining spin-transfer torque and electric field-effect

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