Formation of Texture in Co/Cr Films for Perpendicular Magnetic Recording

Hergt, R.; Pfeiffer, H. P.; Fritzsch, L.

doi:10.1002/pssa.2210980108

Cited by 8 publications

(1 citation statement)

References 28 publications

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“…Previous investigations [6], [9]-[ 121 have demonstrated that CO-Cr films display a columnar microstructure with a strong degree of alignment of the C-axis in the direction perpendicular to the film normal. The high degree of texture in CO-Cr films plays a major role in optimizing their magnetic properties.…”

Section: Introductionmentioning

confidence: 99%

The development of texture in Co-Cr films

1994

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Texture development as a function of film thickness (5-980 nm) was investigated for two series of CoslCr19 films. In general, the films were strongly textured. The orientation ratio, OR,, was used to describe the strength of the texture. Experimental data showed that for the Series A films (5-200 nm), the OR, value increased with increasing film thickness, while for Series B films (46-980 nm), the OR, as a function of the film thickness described a single peak curve, with its maximum near 130 nm. The calculated local orientation ratios OR, for both the Series A and B films had maxima near 110 nm. The strain in CO-Cr films also changes with the film thickness. In the case of the Series B films, the strain along the film normal gradually changed from a tensile to a compressive strain with increasing film thickness, and near 130 nm the film was in a stress-free condition. It was also discovered that for CO-Cr films thinner than 46 nm, the aspect ratio of the grains approaches 1 and the typical columnar structure of grains is not observed, although (0002) fibre texture still exists.

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Section: Introductionmentioning

confidence: 99%

The development of texture in Co-Cr films

1994

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Influence of texture formation on properties of films for perpendicular magnetic recording

Pfeiffer

Hergt

1987

Phys. Stat. Sol. (a)

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For perpendicular magnetic recording layers the c‐axis inplane components and the effective uniaxial anisotropy are calculated in dependence on the angular width of the c‐axis texture as well as on the amount of parasitic non c‐axis textures. Taking into account an inhomogeneous distribution of the texture, i.e. a transition layer within the film experimental observations in the literature may be well understood. The dependence of magnetic characteristics on the film thickness is evaluated. It is shown that film quality has to be characterized by the full texture distribution function rather than by texture half width alone.

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