Figure 1 | Scientific Reports

Figure 1

From: Ampere–Oersted field splitting of the nonlinear spin-torque vortex oscillator dynamics

Figure 1

Illustration of the magnetic tunnel junction under study. The MTJ is a standard Py/MgO/SAF stack with a free permalloy (Py) layer dot, a nonmagnetic spacer (typically MgO), and a synthetic antiferromagnet (SAF) polariser that generates a perpendicular spin polarisation \(p_{J}\). In this illustration, the Ampère–Oersted field \(\mathbf {H}_{\mathrm{Oe}}\) is parallel to the dot in-plane magnetisation (chirality \(C= +1\)).

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