Transactions of the Magnetics Society of Japan
Online ISSN : 1884-6726
Print ISSN : 1346-7948
ISSN-L : 1346-7948
Effect of Thin Al Underlayer in Amorphous Magnetic Recording Media
J. SatoK. TakayamaS. MiyanishiH. FujiY. MurakamiK. KojimaA. Takahashi
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2004 年 4 巻 4-2 号 p. 178-181

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The effect of thin Al underlayers for amorphous TbFeCo-based, perpendicular magnetic recording media were studied in a laser-assisted and also in a non-assisted, conventional magnetic recording method. With the insertion of only a few nanometers of Al underlayer underneath a TbFeCo layer, an increase of coercivity was observed and the linear recording density was improved. It is considered that the relatively rough, grain-like surface structure, of the Al underlayer worked as pinning sites for the TbFeCo laver.
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