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Proceedings Paper

Analysis on the magnetic capping effect in heat assisted magnetic recording
Author(s): Xianying Wang; Ming Fang; Jingsong Wei; Qinghui Li; Defang Shen; Fuxi Gan
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Paper Abstract

The use of magnetic capping effect can enhance the head sensitivity of the heat assisted magnetic recording (HAMR). The principle of this effect was analyzed theoretically. The GdFeCo film was used as the capping layer and TbFeCo film was used as the recording layer. Through theoretical calculation we found that a large capping field in the same direction with the external field can be generated at the interface because of the exchange coupling effect, which had increased the effective strength of the external field. Thus, the head sensitivity was improved greatly and the data transfer rate could be faster. We expected that this idea can be used to help write the medium with much larger cocervity such as L10FePt.

Paper Details

Date Published: 15 September 2005
PDF: 4 pages
Proc. SPIE 5966, Seventh International Symposium on Optical Storage (ISOS 2005), 59660D (15 September 2005); doi: 10.1117/12.649609
Show Author Affiliations
Xianying Wang, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences (China)
Ming Fang, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences (China)
Jingsong Wei, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences (China)
Qinghui Li, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences (China)
Defang Shen, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences (China)
Fuxi Gan, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences (China)


Published in SPIE Proceedings Vol. 5966:
Seventh International Symposium on Optical Storage (ISOS 2005)
Fuxi Gan; Lisong Hou, Editor(s)

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