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Understanding the Magnetization Reversal in Six-Fold Anisotropic Hexagonal Networks

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4 Author(s)
Venkateswarlu, D. ; Dept. of Phys., Indian Inst. of Sci., Bangalore, India ; Mohanan, P.V. ; Joshi, R.S. ; Kumar, P.S.A.

Isolated magnetic nanowires have been studied extensively and the magnetization reversal mechanism is well understood in these systems. But when these nanowires are joined together in different architectures, they behave differently and can give novel properties. Using this approach, one can engineer the network architectures to get artificial anisotropy. Here, we report six-fold anisotropy by joining the magnetic nanowires into hexagonal network. For this study, we also benchmark the widely used micromagnetic packages: OOMMF, Nmag, and LLG-simulator. Further, we propose a local hysteresis method by post processing the spatial magnetization information. With this approach we obtained the hysteresis of nanowires to understand the six-fold anisotropy and the reversal mechanism within the hexagonal networks.

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Magnetics, IEEE Transactions on  (Volume:48 ,  Issue: 11 )