Study of amorphous ferromagnetic microwires using a scanning SQUID microscope

The magnetic properties of amorphous ferromagnetic 30-50- mu m diameter microwires produced by means of spinning process are studied both experimentally and theoretically. The magnetic images of the microwire are measured at 77 K with the high-spatial resolution scanning SQUID microscope in an axial...

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Bibliographic Details
Published in:Physica. C, Superconductivity Superconductivity, 2001-08, Vol.372-376 (1), p.271-273
Main Authors: Gudoshnikov, S A, Liubimov, B Y, Matveets, L V, Snigirev, O V, Maresov, A G, Prokoshin, A F, Borisov, V T, Usov, N A
Format: Article
Language:English
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Summary:The magnetic properties of amorphous ferromagnetic 30-50- mu m diameter microwires produced by means of spinning process are studied both experimentally and theoretically. The magnetic images of the microwire are measured at 77 K with the high-spatial resolution scanning SQUID microscope in an axial magnetic field up to 10 exp 3 A/m. The values of the local magnetic fields produced by the microwire in remnant state are typically a few mu T at a distance 50-100 mu m far from the sample. It is shown that the wire's domain structure calculated numerically is in a qualitative agreement with the magnetic images obtained experimentally. (Example material: amorphous CoFeCrSiB.)
ISSN:0921-4534