发明名称 |
THERMALLY-ASSISTED MAGNETIC RECORDING METHOD FOR WRITING DATA ON A HARD DISK MEDIUM |
摘要 |
A thermally-assisted magnetic recording method includes first and second steps. The first step applies heat to part of a hard disk medium and forms a moving high-temperature region in a magnetic recording layer of the hard disk medium. The high-temperature region is higher in temperature than a region therearound and has a temperature equal to or higher than the maximum coercivity vanishing temperature of a plurality of magnetic grains contained in the magnetic recording layer. At least one magnetic grain that is adjacent to the rear end of the high-temperature region in the direction of movement of the high-temperature region has a coercivity of a value other than 0. The second step applies a write magnetic field to the hard disk medium such that the write magnetic field applied to the at least one magnetic grain adjacent to the rear end of the high-temperature region is 3 kOe or smaller in magnitude. |
申请公布号 |
US2012230169(A1) |
申请公布日期 |
2012.09.13 |
申请号 |
US201113046117 |
申请日期 |
2011.03.11 |
申请人 |
SHIMAZAWA KOJI;MIZUNO TOMOHITO;KIYONO HIROSHI;TDK CORPORATION |
发明人 |
SHIMAZAWA KOJI;MIZUNO TOMOHITO;KIYONO HIROSHI |
分类号 |
G11B5/02;G11B13/08 |
主分类号 |
G11B5/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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