Precessional spin-transfer switching in a magnetic tunnel junction with a synthetic antiferromagnetic perpendicular polarizer

Abstract : This paper reports sub-nanosecond precessional spin-transfer switching in elliptical magnetic tunnel junction nanopillars. This result is obtained in samples integrating a synthetic antiferromagnetic perpendicular polarizer and a tunnel junction with in-plane magnetized electrodes. The out-of-plane precession of the free layer magnetization results in oscillations of the switching probability as a function of the pulse width. At 9.25 MA/cm2 current density, these oscillations have a period of 1 ns with a high degree of coherence.
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Submitted on : Monday, February 18, 2019 - 3:16:33 PM
Last modification on : Thursday, April 4, 2019 - 9:44:03 AM

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  • HAL Id : hal-02023419, version 1

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M. Marins de Castro, R. Sousa, S. Bandiera, C. Ducruet, A. Chavent, et al.. Precessional spin-transfer switching in a magnetic tunnel junction with a synthetic antiferromagnetic perpendicular polarizer. Journal of Applied Physics, American Institute of Physics, 2012, 111 (7), pp.07C912. ⟨hal-02023419⟩

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