NDLI: Properties of vector preisach models

Content Provider	IEEE Xplore Digital Library
Author	Kahler, G.R. Della Torre, E. Patel, U.D.
Copyright Year	1965
Abstract	We discuss rotational anisotropy and rotational accommodation of magnetic-particle tape, phenomena that affect performance during reading and writing in the recording process. We introduce the reduced vector Preisach model (RVPM) to simplify the selection rules and eliminate the rotational correction of the simplified vector Preisach model (SVPM). In order to make the model agree with our measurements, we introduce the RVPM, which eliminates the need for a rotational correction in the SVPM. Using this new model as a basis to characterize the medium, we have measured and computed the angle of magnetization for a magnetic-particle tape rotated in an applied field. Because rotational models must accurately compute the anisotropic characteristics of ellipsoidally magnetizable media, we use an ellipticity factor that accurately computes the two-dimensional magnetization trajectories for small applied fields, and that corrects the orientation error for both isotropic and anisotropic media. We report rotational magnetization measurements that demonstrate vector accommodation for ellipsoidally magnetizable media. The magnetization trajectories show that accommodation is achieved.
Sponsorship	IEEE Magnetics Society
Starting Page	8
Ending Page	16
Page Count	9
File Size	395117
File Format	PDF
ISSN	00189464
Volume Number	41
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetic anisotropy Perpendicular magnetic anisotropy Magnetization Anisotropic magnetoresistance Magnetic field measurement Rotation measurement Writing Disk recording Magnetic recording Error correction rotational orientation Preisach modeling reduced model rotational accommodation rotational anisotropy
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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