公开(公告)号：US06830824B2

公开(公告)日：2004-12-14

申请号：US09878384

申请日：2001-06-12

申请人： Akira Kikitsu ,  Junichi Akiyama ,  Katsutaro Ichihara ,  Tadashi Kai ,  Toshihiko Nagase ,  Tomoyuki Maeda

发明人： Akira Kikitsu ,  Junichi Akiyama ,  Katsutaro Ichihara ,  Tadashi Kai ,  Toshihiko Nagase ,  Tomoyuki Maeda

IPC分类号： G11B11105

CPC分类号： G11B5/00 ,  G11B5/66 ,  G11B2005/0002 ,  G11B2005/0021 ,  Y10T428/12861 ,  Y10T428/12875 ,  Y10T428/12986 ,  Y10T428/265

摘要： A magnetic recording medium has a substrate, a base layer formed on the substrate and including a magnetic material, a switching layer formed on the base layer and including a nonmagnetic material, and a recording layer formed on the switching layer and having a structure comprising magnetic particles and a nonmagnetic wall buried between the magnetic particles. The medium meets the condition of TcB>Tsw, where TcB is a Curie temperature of the base layer, and Tsw is a temperature at which the recording layer and the base layer begin to exert exchange coupling interaction.

摘要翻译： 磁记录介质具有基板，形成在基板上的基层，包括磁性材料，形成在基层上的包含非磁性材料的开关层以及形成在开关层上的具有包括磁性的结构的记录层 颗粒和埋在磁性颗粒之间的非磁性壁。 介质满足TcB> Tsw的条件，其中TcB是基层的居里温度，Tsw是记录层和基层开始发生交换耦合相互作用的温度。