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|Title:||Magnetization states in coupled Ni80Fe20 bi-ring nanostructures||Authors:||Ren, Y.
|Issue Date:||1-Sep-2010||Citation:||Ren, Y., Jain, S., Adeyeye, A.O., Ross, C.A. (2010-09-01). Magnetization states in coupled Ni80Fe20 bi-ring nanostructures. New Journal of Physics 12 : -. ScholarBank@NUS Repository. https://doi.org/10.1088/1367-2630/12/9/093003||Abstract:||The effects of magnetostatic and exchange coupling between two circular Ni80Fe20 rings on the magnetization reversal process and spin configuration are investigated using focused magneto-optic Kerr measurements and magnetic force microscopy measurements. When the two rings are contiguous and exchange coupled, the reversal occurs via a three-stage process leading to a significant reduction of the vortex-onion switching fields when compared to magnetostatically coupled ring pairs or isolated rings of the same lateral dimensions. For exchange-coupled rings, the chirality of the vortices in the two rings is correlated. The experimental results are compared to micromagnetic simulations. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.||Source Title:||New Journal of Physics||URI:||http://scholarbank.nus.edu.sg/handle/10635/82656||ISSN:||13672630||DOI:||10.1088/1367-2630/12/9/093003|
|Appears in Collections:||Staff Publications|
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