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Title: Current-controlled domain structures in micron-sized magnetic permalloy rods
Authors: Soh, Y.S.
Ng, V. 
Keywords: Magnetic domain configuration
Magnetic force microscope
Mesoscopic structures
Permalloy and micromagnetic calculations
Issue Date: 2005
Citation: Soh, Y.S.,Ng, V. (2005). Current-controlled domain structures in micron-sized magnetic permalloy rods. 2005 5th IEEE Conference on Nanotechnology 1 : 181-184. ScholarBank@NUS Repository.
Abstract: The discovery of current-controlled domain structures in micron-sized permalloy rods is reported. At zero-applied field, the remanent domain structures of 12 μm × 3 μm rods with a thickness of 40 nm are imaged with magnetic force microscopy and compared to results from micromagnetic simulations. Both studies revealed a stable flux-closure state, which we term the 3-diamond state at remanence. After constant current applications in the order of 107 A/cm2, another stable flux-closure state, the 1-diamond domain structure was observed. In this paper, we explain the domain evolution process of the rods as well as the domain structures created under the influence of the local magnetic environment. ©2005 IEEE.
Source Title: 2005 5th IEEE Conference on Nanotechnology
ISBN: 0780391993
DOI: 10.1109/NANO.2005.1500681
Appears in Collections:Staff Publications

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