S.J. Koester, K.L. Saenger, et al.
IEEE Electron Device Letters
Paper
High Susceptibility Domain Configuration in Micron-Sized Ferromagnetic Stripes
Abstract
We report on a newly discovered domain configuration, observed with a magneto-optical microscope, in narrow stripes of NiCoFe, CoFeCu and NiFe. The stripes — 1 to 25 μm wide and 0.5 to 2.0 μm thick — are used here 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 narrow as 1 μm. © 1993 IEEE
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