Field dependence of magnetization reversal by spin transfer
By Julie Grollier, Vincent Cros, H. Jaffrès, A. Hamzić, J. George, G. Faini, J. Youssef, H. Legall, A. F. U. M. D. P. CNRS-THALES, U. Paris-sud and 8 more. 2002
178 citations recorded by the source corpus.
We describe and analyze the effect of an applied field (H a p p l ) on the current-driven magnetization reversal in pillar-shaped Co/Cu/Co trilayers. Depending on the magnitude of H a p p l , we observe two different types of transitions between the parallel (P) and antiparallel (AP) magnetic configurations of the the Co layers. If H a p p l is smaller than some threshold value, the transitions between P and AP are relatively sharp and irreversible. For H a p p l exceeding this threshold value, the transitions are progressive and reversible. We show that this behavior can be precisely accounted for by introducing the current-induced torque of the spin transfer models into a Landau-Lifshitz-Gilbert equation to determine the stability or instability of the P and AP states. This analysis also provides a good description for the field dependence of the critical currents.
Subfields: Atomic and Molecular Physics, and Optics, Condensed Matter Physics, Electronic, Optical and Magnetic Materials
View Paper: https://www.semanticscholar.org/paper/1f1540dc8e9271a01bdcae55a12e0c84bb20324a
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In Atomic and Molecular Physics, and Optics
In Condensed Matter Physics
In Electronic, Optical and Magnetic Materials
Citations in the corpus
- Spin-torque building blocks. (2014, background): “The magnetization then enters a regime of spin-torqueinduced sustained precession [22] [23].”