Switching Behavior of Patterned Ni_<80>Fe_<20> Islands

概要

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The magnetic behavior of patterned Ni_<80>Fe_<20> arrays consisting of 0.8 million nearly identical islands with a size of 1μm x 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.
社団法人日本磁気学会の論文
2003-05-01