Macrospin model of precessional spin-transfer-torque switching in planar magnetic tunnel junctions with perpendicular polarizer

Abstract : We developed a macrospin model describing the storage layer magnetization dynamics under spin-transfer-torque (STT) in in-plane magnetized magnetic tunnel junctions comprising a perpendicular, out-of-plane magnetized, polarizer. Two regimes were observed in the storage layer magnetization dynamics under the influence of the two STT contributions originating from the perpendicular polarizer and in-plane reference layer: (i) a regime of steady precession under DC current when the STT from the perpendicular polarizer dominates and (ii) a regime of bipolar switching in a direction determined by the current direction when the STT from the in-plane reference layer dominates.
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https://hal-cea.archives-ouvertes.fr/cea-00852042
Contributor : Bruno Savelli <>
Submitted on : Monday, August 19, 2013 - 4:07:00 PM
Last modification on : Thursday, April 4, 2019 - 9:44:02 AM

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A. Mejdoubi, B. Lacoste, Guillaune Prenat, B. Dieny. Macrospin model of precessional spin-transfer-torque switching in planar magnetic tunnel junctions with perpendicular polarizer. Applied Physics Letters, American Institute of Physics, 2013, 102, pp.152413. ⟨10.1063/1.4802720⟩. ⟨cea-00852042⟩

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