Magnetooptical investigation of the micromagnetic structure and magnetization processes in Co69Fe4Si12B15 amorphous microwires |
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Authors: | E E Shalygina V V Molokanov M A Komarova |
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Institution: | (1) Moscow State University, Vorob’evy gory, Moscow, 119899, Russia;(2) Baikov Institute of Metallurgy, Russian Academy of Sciences, Leninskii pr. 49, Moscow, 117334, Russia |
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Abstract: | Magnetooptical investigation of the micromagnetic structure of Co69Fe4Si12B15 amorphous microwires 10–50 μm in diameter is carried out. The existence of domains with transverse circumferential magnetization is experimentally demonstrated in the near-surface region of microwires. The dependence of the width of circular domains on the length and diameter of wires is obtained. It is shown that the near-surface micromagnetic structure of amorphous wires is changed under a stretch-induced stress. It is proved that the magnetization reversal of microwires in a longitudinal magnetic field occurs due to the rotation of local magnetization vectors in circular domains. |
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