Study of amorphous ferromagnetic microwires using a scanning SQUID microscope

The magnetic properties of amorphous ferromagnetic 30–50-μm 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 ma...

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Bibliographic Details
Published in:Physica. C, Superconductivity Superconductivity, 2002-08, Vol.372, p.271-273
Main Authors: Gudoshnikov, S.A, Liubimov, B.Ya, Matveets, L.V, Snigirev, O.V, Maresov, A.G, Prokoshin, A.F, Borisov, V.T, Usov, N.A
Format: Article
Language:English
Subjects:
Amorphous ferromagnetic wire
Domain structure
Scanning SQUID microscope
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Summary:The magnetic properties of amorphous ferromagnetic 30–50-μm 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 3 A/m. The values of the local magnetic fields produced by the microwire in remnant state are typically a few μT at a distance 50–100 μm 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.
ISSN:0921-4534
1873-2143
DOI:10.1016/S0921-4534(02)00689-5