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Patterned magnetic recording medium

A magnetic recording medium and patterning technology, which is applied to pattern recording carriers, magnetic recording, data recording, etc., can solve the problems of difficulty in ensuring recording reliability and data stability, so as to improve recording reliability and data stability, reduce Small switching field distribution, reducing the effect of magnetic interactions

Inactive Publication Date: 2008-05-07
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] Therefore, it is difficult to ensure recording reliability and data stability in conventional patterned media

Method used

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  • Patterned magnetic recording medium
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Embodiment Construction

[0036] The present invention will now be described more fully with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. In the drawings, the widths or thicknesses of layers and regions are exaggerated for clarity.

[0037] 2 is a cross-sectional view of a patterned magnetic recording medium according to an embodiment of the present invention.

[0038] Referring to FIG. 2 , the patterned magnetic recording medium according to the current embodiment of the present invention includes a plurality of magnetic recording layers 200 arranged on a substrate 20 at intervals. In one embodiment, the magnetic recording layer 200 is arranged at regular intervals. Each of the magnetic recording layers 200 is a multilayer laminate. The multilayer laminate has a sandwich structure in which a soft magnetic layer 6 is interposed between a first ferromagnetic layer 2a and a second ferromagnetic layer 2b. The first nonmagnetic layer 4a may be formed...

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Abstract

Provided is a patterned magnetic recording medium including a plurality of magnetic recording layers arranged at predetermined regular intervals on a substrate, wherein the magnetic recording layers are multi-layered and comprise a means of suppressing magnetic interaction between the magnetic recording layers. The magnetic recording layer includes a first ferromagnetic layer, the means of suppressing magnetic interaction, and a second ferromagnetic layer sequentially stacked, wherein the means of suppressing magnetic interaction is a soft magnetic layer.

Description

technical field [0001] The present invention relates to a recording medium, and more particularly, to a patterned magnetic recording medium with reduced interaction between adjacent magnetic recording layers. Background technique [0002] In a continuous magnetic recording medium using a continuous magnetic film as a recording layer (hereinafter, referred to as "continuous medium"), in order to increase the recording density of the continuous medium, the size of magnetic grains constituting the magnetic film should be small. However, when the size of the magnetic particles is smaller than a critical value, the superparamagnetic effect occurs, and thus the thermal stability of the magnetic particles decreases, thereby degrading the data storage performance of the continuous medium. Therefore, it is difficult to increase the recording density of continuous media. [0003] In order to overcome the limitation of the recording density of continuous media, a patterned magnetic re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B5/66G11B5/64G11B5/74
CPCB82Y10/00G11B5/82G11B5/66G11B5/667G11B5/743G11B5/855G11B5/02G11B5/746G11B2005/0029G11B2005/0005G11B5/7325G11B5/672G11B5/678G11B5/84Y10S428/90
Inventor 林志庆孙镇昇李丙圭
Owner SAMSUNG ELECTRONICS CO LTD
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