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SQUID microscope for magnetic structure visualization in magnetoimpedance elements

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10 Author(s)
Gudoshnikov, S.A. ; Inst. of Terrestrial Magnetism Ionosphere & Radio Wave Propagation, Troitsk, Russia ; Rudenchik, P.E. ; Matveets, L.V. ; Snigirev, O.V.
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An attempt to apply a SQUID microscope for visualization of magnetic structure in giant magnetic impedance (GMI) elements was undertaken. The measurements were carried out on the 1×10-3 mm thick permalloy strip with the in-plane sizes 6 mm×0.3 mm. The topography of the vertical component of magnetic field was imaged with a high spatial resolution close to 30×10-3 mm over the central part of a sample. The images taken in the applied magnetic field varied over the range ±4 kA/m reveal the domain structure with anisotropy perpendicular to longitudinal sample axis

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Applied Superconductivity, IEEE Transactions on  (Volume:11 ,  Issue: 1 )