Article

State diagram for spin current-induced magnetization dynamics using a perpendicular polarizer and a planar free layer

Journal of Magnetism and Magnetic Materials (impact factor: 1.78). 310(2):2029-2031. DOI:10.1016/j.jmmm.2006.10.932 pp.2029-2031

ABSTRACT The dynamic state diagram for spin current-induced magnetization dynamics is presented for an out-of-plane magnetized (perpendicular) polarizer and an in-plane magnetized (planar) free layer as obtained from macrospin simulations. The state boundaries are compared upon using a constant spin polarization factor with an angular-dependent spin polarization factor g(θMP) as introduced by Slonczewski. While two critical boundaries remain unaffected by the angular dependence of the polarization, the transition from precession to an out-of-plane stable state is drastically shifted and shows a strong asymmetry with respect to the sign of the spin-polarized current.

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