Table 1 Parameters used in simulation
Parameters | Description | Value |
|---|---|---|
M s | Saturation magnetization | 1 MA/m |
d | MTJ diameter | 40 nm |
α | Gilbert damping constant | 0.01 |
P | Spin polarization | 0.5 |
J | Applied current density | 4 MA/cm2 |
A | Exchange stiffness | 20 pJ/m |
K u1 | Anisotropy constant of FL1 | 0.8 mJ/m3 |
K u2 | Anisotropy constant of FL2 | 0.7 mJ/m3 |
t1 | Thickness of FL1 | 1 nm |
t2 | Thickness of FL2 | 1.5 nm |
D1 and D2 | DMI magnitudes of FL1 and FL2 | − 2 to 2 mJ/m2 |
σ | Bilinear surface exchange energy for RKKY interaction | 3 × 10−4 J/m2 to 10−2 J/m2 |