Invention Application
- Patent Title: Magnetic Recording Media Having Recording Regions and Separation Regions That Have Different Lattice Constants and Manufacturing Methods Thereof
- Patent Title (中): 具有记录区域和具有不同晶格常数的分离区域的磁记录介质及其制造方法
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Application No.: US12777982Application Date: 2010-05-11
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Publication No.: US20100302682A1Publication Date: 2010-12-02
- Inventor: Tatsuya Hinoue , Hiroshi Yakushiji , Toshinori Ono , Hiroyuki Suzuki , Hiroshi Inaba , Masae Suzuki
- Applicant: Tatsuya Hinoue , Hiroshi Yakushiji , Toshinori Ono , Hiroyuki Suzuki , Hiroshi Inaba , Masae Suzuki
- Priority: JP2009-126258 20090526
- Main IPC: G11B5/82
- IPC: G11B5/82
Abstract:
According to one embodiment, a magnetic recording medium includes a magnetic recording layer formed above a substrate, the magnetic recording layer being comprised of an alloy having a crystal structure, recording tracks formed on the magnetic recording layer in nearly concentric circular shapes, wherein the recording tracks are comprised of a first alloy composition having a crystal structure, and track separation regions formed between the recording tracks on the magnetic recording layer, wherein the track separation regions are comprised of a second alloy composition having a crystal structure, the second alloy composition comprising the first alloy composition and a non-magnetic element, wherein a lattice constant of the second alloy composition is greater than a lattice constant of the first alloy composition. In other embodiments, methods of manufacturing magnetic recording media and systems using magnetic recording media are described.
Information query
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