Switching Behavior of Patterned Ni80Fe20 Islands

S.H. Liou; L. Yuan; L. Gao; C.D. Chen; S.F. Lee; Y.D. Yao

doi:10.3379/tmjpn2001.3.51

Switching Behavior of Patterned Ni₈₀Fe₂₀ Islands

S.H. Liou, L. Yuan, L. Gao, C.D. Chen, S.F. Lee, Y.D. Yao

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Keywords: magnetic force microscopy (MFM), magnetization reversal mechanisms, domain structure, magnetic properties of nanostructures, thin film

JOURNAL FREE ACCESS

2003 Volume 3 Issue 2 Pages 51-54

DOI https://doi.org/10.3379/tmjpn2001.3.51

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Abstract

The magnetic behavior of patterned Ni₈₀Fe₂₀ arrays consisting of 0.8 million nearly identical islands with a size of 1μm×5μm and 11nm thick was characterized using an alternating gradient force magnetometer and magnetic force microscopy. Magnetic hysteresis of the arrays illustrated that the average switching behavior is symmetric; however, the switching field of a single island is not symmetric. Our study clearly shows that the magnetization reversal of these islands is not coherent rotation.

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