Magnetic texture in films with perpendicular anistropy
The notion of magnetic texture in films for perpendicular magnetic recording is introduced. The characteristics of magnetic texture dispersion ( δϑ 50) in CoCr films are also defined. The method of determination of material constants from the curves of film magnetization, including the first and se...
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Published in | Journal of magnetism and magnetic materials Vol. 109; no. 2; pp. 375 - 382 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Elsevier B.V
1992
|
Online Access | Get full text |
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Summary: | The notion of magnetic texture in films for perpendicular magnetic recording is introduced. The characteristics of magnetic texture dispersion (
δϑ
50) in CoCr films are also defined. The method of determination of material constants from the curves of film magnetization, including the first and second anisotropy constants
K
1 and
K
2, as well as °
ϑ
50 is proposed. The effects of film structure have been studied on the basis of a magnetostatic model of a columnar structure. The shape anisotropy constants is estimated to have the value ≈5×10
5 erg/cm
3, when
M
s
in the volume of column is 400 G. The criteria for the applicability of films as perpendicular magnetic recording media are also formulated. |
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ISSN: | 0304-8853 |
DOI: | 10.1016/0304-8853(92)91776-P |