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Interaction effects in multi-layer thin film media

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6 Author(s)
El-Hilo, M. ; SEES, Univ. Coll. of North Wales, Bangor, UK ; O'Grady, K. ; Chantrell, R.W. ; Sanders, I.L.
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The authors report on the magnetic properties of CoPtCr multilayer thin film media. Measurements of δ(H) were made for a range of CoPtCr films with differing numbers of layers, but with a constant overall total magnetic layer thickness. The results indicate that the multilayer films show two types of switching behavior due to the difference in the Cr underlayer and interlayer thicknesses. It is concluded that interactions within the film are reduced when the magnetic single layer is laminated with chromium. Thus the recording performance is expected to be improved as the number of the layers increases, due to the reduction in intergranular coupling between and possibly within the layers

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Magnetics, IEEE Transactions on  (Volume:27 ,  Issue: 6 )