High susceptibility domain configuration in micron-sized ferromagnetic stripes

The authors report on a newly discovered domain configuration, observed with a magnetooptical microscope, in narrow stripes of NiCoFe, CoFeCu and NiFe. The stripes-1 to 25 mu m wide and 0.5 to 2.0 mu m thick-are used as a model for a narrow-track pole of a recording head. The new domain configuratio...

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Bibliographic Details
Published in:IEEE transactions on magnetics 1993-11, Vol.29 (6), p.3840-3842
Main Authors: Petek, B., Chang, J.-W., Jahnes, C.V., Lo, J., Trouilloud, P.L.
Format: Article
Language:English
Subjects:
Applied sciences
Compressive stress
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Domain effects, magnetization curves, and hysteresis
Domain walls and domain structure
Exact sciences and technology
Magnetic force microscopy
Magnetic heads
Magnetic properties and materials
Magnetic susceptibility
Magnetization
Magnetooptic recording
Magnetostriction
Metals. Metallurgy
Micromagnetics
Physics
Resists
Substrates
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Summary:The authors report on a newly discovered domain configuration, observed with a magnetooptical microscope, in narrow stripes of NiCoFe, CoFeCu and NiFe. The stripes-1 to 25 mu m wide and 0.5 to 2.0 mu m thick-are used as a model for a narrow-track pole of a recording head. The new domain configuration, with its magnetization oriented mostly in a plane perpendicular to the long dimension of the stripe, suggests the possibility of obtaining a large high-frequency susceptibility even in recording head poles as a narrow as 1 mu m.< >
ISSN:0018-9464
1941-0069
DOI:10.1109/20.281316