发明名称 MAGNETIC LAYERING FOR BIT-PATTERNED MEDIUM
摘要 <p><P>PROBLEM TO BE SOLVED: To obtain a magnetic recording layer for a magnetic bit-patterned recording medium, with which the efficiency of writing is improved without damaging thermal stability by utilizing inclined anisotropy. <P>SOLUTION: A perpendicular magnetic recording layer of a magnetic recording medium includes a plurality of bit-patterned magnetic islands, wherein each of the plurality of islands overlay a soft magnetic under-layer. Each of the magnetic islands includes a first magnetic sub-layer adjacent a second magnetic sub-layer, wherein the first sub-layer has a relatively high magnetic anisotropy that is greater than a magnetic anisotropy of the second sub-layer. The magnetic recording layer further includes a third sub-layer, which extends to connect each of the plurality of islands. The third sub-layer may have a magnetic anisotropy that is less than that of the second sub-layer of each of the magnetic islands and/or may serve as an interlayer, extending between the first sub-layer and the soft magnetic under-layer of the recording medium, and having a structure to help to produce the greater anisotropy of the first magnetic sub-layer. <P>COPYRIGHT: (C)2010,JPO&INPIT</p>
申请公布号 JP2010157314(A) 申请公布日期 2010.07.15
申请号 JP20090297374 申请日期 2009.12.28
申请人 SEAGATE TECHNOLOGY LLC 发明人 GIRT EROL;WELLER DIETER K;DOBIN ALEXANDER Y;VALCU BOGDAN F;AMBROSE THOMAS F;PENG YINGGUO;KUBOTA YUKIKO A;HAILU ABEBE
分类号 G11B5/65;G11B5/64;G11B5/66;G11B5/667;G11B5/738;H01F10/16 主分类号 G11B5/65
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