https://doi.org/10.1140/epjp/s13360-022-03187-4
Regular Article
Magnetization switching by orange peel coupling in pentalayer nanopillar with dual polarizer
1
Centre for Nonlinear Systems, Chennai Institute of Technology, 600069, Chennai, Tamilnadu, India
2
Centre for Nonlinear Science and Engineering, School of Electrical and Electronics Engineering, SASTRA Deemed University, 613401, Thanjavur, Tamilnadu, India
Received:
31
March
2022
Accepted:
11
August
2022
Published online:
2
September
2022
The magnetization switching dynamics of the free layer in the pentalayer nanopillar is studied by numerically solving the dynamical equation governed by the Landau–Lifshitz–Gilbert–Slonczewski equation. The magnetization switching time in the absence of orange peel coupling for an applied current density of 
is 207 ps. The presence of orange peel coupling reduces the switching time to 116 ps for the same applied current density. The main reason for the reduction of the switching time in the presence of orange peel coupling is generation of additional coupling field perpendicular to the easy axis due to the correlated interface roughness. The impact of spacer and free layer thickness on switching time is also studied. We found that switching time reduces, when the thickness of the spacer and free layer is decreased.
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