TEXTURE OF CR INTERLAYER IN DOUBLE COCRTA THIN-FILMS AND EFFECTS OF INTERLAYER ON THE MAGNETIC-PROPERTIES

Multilayer magnetic recording thin film media have attracted much attention because of their high signal to noise ratios. In this work, we investigated the crystallographic texture of the interlayer and the effects of the interlayer on the magnetic properties. We found that: 1) When deposited at room temperature, the Cr interlayer has {110} texture, the same as the texture or the Cr underlayer. 2) When deposited at elevated temperatures, the Cr interlayer may have a different texture than that of the underlayer. 3) The Cr interlayer (only 25 angstrom thick) can either increase Hc or reduce S*, depending on thickness of the CoCrTa layer. 4) The substrate temperature affects Hc and S* dramatically.