A theoretical study of an isolated transition using an iterative hysteretic model

Recently Iwasaki and Suzuki pointed out that demagnetization could conceivably be very significant during the writing process and presented a self-consistent iterative calculation of the writing process which confirmed their views. In the present study we extend their scheme to study an isolated tra...

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Bibliographic Details
Published inIEEE transactions on magnetics Vol. 6; no. 3; pp. 640 - 646
Main Authors Curland, N., Speliotis, D.
Format Journal Article
LanguageEnglish
Published IEEE 01.09.1970
Subjects
Coercive force
Demagnetization
Magnetic anisotropy
Magnetic heads
Magnetic hysteresis
Magnetic materials
Magnetization
Magnetostatics
Perpendicular magnetic anisotropy
Writing
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Summary:Recently Iwasaki and Suzuki pointed out that demagnetization could conceivably be very significant during the writing process and presented a self-consistent iterative calculation of the writing process which confirmed their views. In the present study we extend their scheme to study an isolated transition region of finite track width by considering what happens to the transition when the head field is removed. Of particular significance in the final calculated results is the high asymmetry of the magnetization distribution. A detailed comparison was done between the results of the iterative calculation and previous theories of the transition region over a large range of material parameters. It is found that the iteratively calculated transition regions are significantly larger than those calculated by previous authors. Results are also compared to experimental data obtained by electron microscopy.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.1970.1066932